Дисертації з теми "Aide auditive"
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Fillon, Thomas. "Traitement numérique du signal acoustique pour une aide aux malentendants." Phd thesis, Télécom ParisTech, 2004. http://pastel.archives-ouvertes.fr/pastel-00001201.
Malrin, Antoine. "Utilisation de prothèses auditives en milieu de travail : évaluation de la perception des signaux utiles ou de danger pour les personnes appareillées." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0100.
This thesis is part of the prevention of occupational accidents and diseases. It was carried out at the INRS, which is the French research institute for the prevention of accidents at work and occupational diseases. The work carried out aims to acquire knowledge on the risks related to the use of hearing aids worn by hearing-impaired employees in their workplace. Indeed, the primary function of these hearing aids is to amplify acoustic signals in order to compensate for the deafness of a hearing impaired person. However employees may work in noisy environments for which the hearing aid may not be suitable; for example, it may lead to overexposure to noise. In order to prevent the potential risks incurred by employees wearing hearing aids, we wanted to develop a method for the frequency characterisation of hearing aids. This method must also enable to evaluate, by means of psychoacoustic indicators, the perception of employees of their working environment. The selected indicators allow the evaluation of speech intelligibility in noise, the audibility of alarms as well as the daily noise exposure level of the employee. Hearing aids can perform complex operations that may be non-linear. In order to take into account these potential non-linearities in frequency, we used a characterisation method dedicated to non-linear systems. This method is based on the use of a synchronized swept sine to determine filters representative of the frequency nonlinearities of the system studied. In order to represent working sound environments associated with the industrial or tertiary sector, an experimental setup has been developed in the semi-anechoic chamber of the INRS. This bench is based on the use of an acoustic dummy equipped with hearing aids placed in the center of a multidiffusion system that can reproduce a realistic acoustic field of work. In order to test the accuracy of the characterisation, three models of hearing aids were chosen in this thesis. More or less noisy sound scenarios were built up in order to represent acoustic work environments in which the employee may work. The experimental protocol and the associated device made it possible to compare the signals measured at the output of the mannequin's ear canal with those measured at the input of the hearing aid and those resulting from the simulation of the hearing aid. The comparison of the indicators at the hearing aid input and output makes it possible to judge the intelligibility of speech in noise, the audibility of the alarms as well as the level of daily noise exposure at the hearing aid output and to decide on their contribution to the hearing impaired. This work allows us to conclude, on the one hand, on the advantages and limitations of the method for the characterisation of aids. On the other hand, this work could eventually lead to recommendations on the use and choice of hearing aid settings according to the noise environment in the workplace for hearing impaired employees with hearing aids
Bakhos, David. "Etude électrophysiologique des réponses auditives corticales chez l'enfant avec une réhabilitation auditive." Thesis, Tours, 2012. http://www.theses.fr/2012TOUR3307.
Congenitally deaf children cannot acquire spoken language. Language development following auditory rehabilitation varies widely from child to child; this variability could be explained by cortical reorganisation following congenital deafness. Electrophysiological techniques make it possible to investigate cortical auditory processing. Our first study identified a relationship between auditory temporal responses (N1c wave) and language performance in children fitted with hearing aids for moderate congenital deafness. Our second study investigated cortical voice processing in children with a cochlear implant (CI) and with good language performance. Minimisation of the CI artifact was a preliminary step to analyse cortical auditory evoked potentials. A specific response to voice was found in children with CI, broader and more frontally distributed than this recorded in normal hearing children. The identification of such markers shoult it make possible to identify prognostic factors and to better indentify children in need of early care management
Megale, Renata Luciane. "Treinamento auditivo: avaliação do benefício em idosos usuários de próteses auditivas." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5160/tde-29012007-140926/.
INTRODUCTION: Hearing loss causes communication difficulties that can be minimized through the adaptation of hearing aids and through the auditory training. AIM: the purpose of this study was to verify the effectiveness of the auditory training for elderly hearing aids recent users concerning the benefits for the adaptation process. METHOD: 42 individuals with mild to moderate sensorineural hearing loss, ranging in age from 60 to 90 years, recent bilateral hearing aids users were selected and divided into two groups: Experimental Group (EG) and Control Group (CG). The EG underwent an auditory training program in an acoustic booth during six sessions. Both groups were evaluated with Speech in Noise Test, Dichotic Digits Test and the questionnaires HHIE and APHAB in three moments: without the hearing aid (1st evaluation), four weeks (2nd evaluation) and 8 weeks (3rd evaluation) after the hearing aids adaptation. RESULTS: there was a significant statistical difference for the two tests used and for the APHAB questionnaire (concerning the benefit) in the 2nd and 3rd evaluations, in the sub-scales: Communication Facility, Reverberation and Environmental Noise, not verified in the HHIE questionnaire. CONCLUSIONS: the auditory training program in acoustic booth was effective concerning the benefit during the hearing aids adaptation process.
Cruz, Aline Duarte da. "Esforço auditivo e fadiga em adolescentes com deficiência auditiva - uso do sistema FM." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/25/25143/tde-01102018-201135/.
Listening effort is defined as the cognitive effort and the attention required to understand speech in a noisy environment. This study aims to analyze listening effort and fatigue in hearing impaired adolescents, users of HA, with and without a FM system, and to compare them with adolescents with normal hearing, through development of a platform for performing the secondary task in a dual-task test; analyze the impact of noise on learning from the participants perspective; and investigate users\' opinions on the impact of using the FM system in the classroom. A total of 31 adolescents participated in this study: 18 with normal hearing and 13 with moderate to severe bilateral sensorineural hearing loss, users of HA and FM system. The mean age of the adolescents was 14 years. Listening effort was evaluated using dual task paradigm; fatigue, using a scale; the impact of noise on learning, using a question; and the use of the FM system in an educational environment, using a questionnaire. The results were statistically analyzed using t-test (p<0.01), Anova, chisquare of Pearson (p<0.05) and descriptive analysis. A platform was developed to assist in the execution of the dual task test. The platform was named PALETA and consisted of color recognition memory test. Based on the number of correct responses, the difference in listening effort was statistically significant between the participants of the normal hearing group and the participants of the hearing-impaired group when these participants were using HA; but the difference was not statistically significant when comparing response times. The results suggest that the performance of the normal hearing group was similar to the hearing-impaired group when these participants were using a HA and a FM system. When the participants of the hearingimpaired group were using only the HA, the results showed a greater listening effort. The results obtained in the fatigue assessment scale did not reveal statistically significant differences in any of the groups. On the impact of noise in the classroom, the results revealed that the hearing-impaired group users of hearing aid and FM system reported less complaints about noise interfering in learning than their normal hearing peers and in the condition only with their HA. The questionnaire applied provided information on the user\'s perspectives of FM system, which showed that the users were mostly satisfied and made effective use of their devices in the classroom. It is concluded that PALETA is considered an effective tool to assist in the execution of dual task test when considering the number of correct answers; the use of the FM system was effective in reducing listening effort; no significant differences were found between the groups regarding fatigue; the complaint of adolescents with hearing loss about the impact of noise on learning diminishes significantly with the use of the FM system; and the majority of adolescents using FM systems were satisfied and made effective use of their devices in the classroom.
Paiva, de Queiroz Virginia Chaves 1963. "Sintomas depressivos em idosos deficientes auditivos e os benefícios do uso de próteses auditivas." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312613.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
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Resumo: Objetivo: avaliar, por meio dos escores da Escala de Depressão Geriátrica, se o uso de próteses auditivas contribui para melhorar os sintomas depressivos em idosos portadores de perda auditiva. Métodos: foram avaliados 40 sujeitos com idade mínima de 65 anos e máxima de 92 anos, sendo 22 do gênero feminino (55%) e 18 do gênero masculino (45%). Todos portadores de perda auditiva sensorioneural bilateral, com indicação médica para uso de prótese auditiva, que não haviam sido protetizados anteriormente. Foi utilizada a versão em português da Geriatric Depression Scale - Escala de Depressão Geriátrica para avaliação dos sintomas depressivos, em dois momentos distintos, pré e pós-protetização. Os dados foram submetidos a tratamento estatístico, utilizando-se o test-t de Student, o teste de homogeneidade das variâncias de Levene e o teste exato de Fisher. Foi adotado o nível de significância de 5% (p<0,05). Resultados: Os dados obtidos evidenciaram diminuição significativa da sintomatologia depressiva, nas mulheres, no que diz respeito a variável de gênero, na Escala de Depressão Geriátrica 2- GDS-2. Não houve significância de correlação nos dois momentos da aplicação dos instrumentos de rastreio, Escala de Depressão Geriátrica 1- GDS-1 e Escala de Depressão Geriátrica 2- GDS-2, entre sintomatologia depressiva com perda auditiva, renda mensal, faixa etária e escolaridade. Conclusão: Os resultados obtidos permitiram identificar que houve redução ou eliminação da sintomatologia depressiva nos idosos portadores de perda auditiva sensorioneural binaural, confirmando a importância da adaptação de próteses auditivas para a redução ou eliminação da sintomatologia depressiva
Abstract: Purpose: evaluate by scores of Geriatric Depression Scale, if the use of hearing aids helps to improve depressive symptoms in elderly patients with hearing aids. Methods: 40 individuals with minimum age of 65 and maximum age of 92 years ¿ 22 of the female sex (55%) and 18 of the male sex (45%) ¿ were evaluated. All of them were carriers of bilateral sensorineural hearing loss, with medical indication for using hearing aids, who had not been previously prosthetized. The Portuguese version of the geriatric depression scale ¿ Geriatric Depression Scale ¿ was used to evaluate depression symptoms in two distinct times ¿ pre ¿ and post-prosthetization. The data were submitted to statistical treatment, using the Student t-test, Levene¿s test of homogeneity of variances and the Fisher¿s exact test. It was adopted the significance level of 5% (p<0.05). Results: The data obtained emphasized significant decrease in depressive symptoms in women regarding to gender variable, in the Geriatric Depression Scale 2. There was no significance correlation in both moments of application of screening tools, Geriatric Depression Scale and the Geriatric Depression 1 Scale 2, among depressive symptoms with hearing loss, monthly income, age and education level. Conclusion: The results allowed us to identify that there was a reduction or elimination of depression in elderly patients with binaural sensorineural hearing loss, confirming the importance of hearing aid fitting for the reduction or elimination of depressive symptoms
Mestrado
Gerontologia
Mestra em Gerontologia
Ceballo, Charpentier Sebastian Arturo. "Causal manipulations of auditory perception and learning strategies in the mouse auditory cortex." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS058.
Through our senses, the brain receives an enormous amount of information. This information needs to be filtered in order to extract the most salient features to guide our behavior. How the brain actually generates different percepts and drives behavior, remain the two major questions in modern neuroscience. To answer these questions, novel neural engineering approaches are now employed to map, model and finally generate, artificial sensory perception with its learned or innate associated behavioral outcome. In this work, using a Go/noGo discrimination task combined with optogenetics to silence auditory cortex during ongoing behavior in mice, we have established the dispensable role of auditory cortex for simple frequency discriminations, but also its necessary role to solve a more challenging task. By the combination of different mapping techniques and light-sculpted optogenetics to activate precisely defined tonotopic fields in auditory cortex, we could elucidate the strategy that mice use to solve this hard task, revealing a delayed frequency discrimination mechanism. In parallel, observations about learning speed and sound-triggered activity in auditory cortex, led us to study their interactions and causally test the role of cortical recruitment in associative learning, revealing it as a possible neurophysiological correlate of saliency
Silva, Eleonora Csipai da. "Características audiológicas pré e pós adaptação de aparelhos auditivos em pacientes com zumbido." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/5/5170/tde-14082018-124857/.
Introduction: Tinnitus is a symptom of damage of the auditory pathways with varied etiology. Many patients with hearing loss have tinnitus and one of its treatments is the use of hearing aids. Hearing aids amplify external sounds and patients are able to better understand the sounds of the environment, reducing the perception of the tinnitus and improving sound input through enriched acoustics. However, according to literature, some patients do not observe discomfort and tinnitus perception decrease using hearing aids. The study of peripheral hearing in these patients could provide information on factors that make it difficult to reduce tinnitus perception with the use of hearing aids. Objective: To evaluate audiological characteristics of patients with tinnitus and hearing loss, and verify if there are differences between the group that obtained reduction in tinnitus perception with the use of hearing aids and the group that did not obtain the same benefit. Methods: 29 subjects, divided into two groups: Group I (GI) composed of 20 subjects who observed improvement in tinnitus perception after two months of hearing aids use and Group II (GII) with nine subjects who did not observe improvement in tinnitus perception, were evaluated. The Visual Analogue Scale (VAS) score determined the division of the groups. The questionnaires Hearing Handicap Inventory Elderly Screening (HHIE-S) and Tinnitus Handicap Inventory (THI), audiological evaluation (pure tone and bone conduction audiometry, speech recognition index, short increment sensitivity index, otoacoustic emissions), temporal auditory processing tests (Gaps-in-Noise-GIN, Random Interval Detection Test-RGDT, frequency and duration tests (PPS and DPT) and psychoacoustic measures of tinnitus (pitch, loudness and MML) before the fitting of hearing aids and after two months of use were conducted. Subjects were aged between 28 and 68 (mean age 55 years), both sexes, and used same brand hearing aids, with the appropriate fitting for each subject. Results: There was no significant difference between the groups in the audiological tests. Temporal auditory tests accuracy percentage of Group I was higher than Group II, with a tendency to statistical significance in the PPS. Statistical difference was observed in the THI, HHIE-S for GI and GII after the hearing aids use, reducing the score. Regarding psychoacoustic measures, there was significant statistical difference between initial and final loudness and MML in GI, and intergroup difference (GI and GII) in the final MML and loudness. Conclusion: The evaluated audiologic characteristics were not sufficient to indicate if the patient with hearing loss would benefit from a decrease in tinnitus perception after two months of hearing aids use. Individuals with poor PPS performance tend not to reduce tinnitus perception with hearing aids use. The present study indicates the need to investigate other characteristics that may be associated with the difficulty in reducing tinnitus perception with hearing aids use
Dugué, Pierre. "Vers un modèle de la chaîne auditive humaine dans le traitement de l’enveloppe temporelle." Rennes 1, 2008. http://www.theses.fr/2008REN1S024.
This work is aimed at studying the auditory perception of sound temporal envelope, i. E. The amplitude fluctuations whose frequency is lower than about fifty Hertz, this envelope being closely related to speech intelligibility. A physiological model of the temporal envelope processing is proposed. It is composed of two parts : the first one, from the outer ear to the inferior colliculus, generates unitary responses and the second one, from the medial geniculate body to the primary auditory cortex, neural populations responses. In addition to indices frequently used in the literature, two new indices are proposed and validated. Responses to amplitude modulation measured in the main processing centres of the temporal envelope, particularly in the human primary auditory cortex, are effectively reproduced in terms of modulation transfer functions
Kempf, Alexandre. "Nonlinear encoding of sounds in the auditory cortex Temporal asymmetries in auditory coding and perception reflect multi-layered nonlinearities Cortical recruitment determines learning dynamics and strategy Interactions between nonlinear features in the mouse auditory cortex Context-dependent signaling of coincident auditory and visual events in primary visual cortex." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCB085.
Perceptual objects are the elementary units used by the brain to construct an inner world representation of the environment from multiple physical sources, like light or sound waves. While the physical signals are first encoded by receptors in peripheral organs into neuroelectric signals, the emergence of perceptual object require extensive processing in the central nervous system which is not yet fully characterized. Interestingly, recent advances in deep learning shows that implementing series of nonlinear and linear operations is a very efficient way to create models that categorize visual and auditory perceptual objects similarly to humans. In contrast, most of the current knowledge about the auditory system concentrates on linear transformations. In order to establish a clear example of the contribution of auditory system nonlinearities to perception, we studied the encoding of sounds with an increasing intensity (up ramps) and a decreasing intensity (down ramps) in the mouse auditory cortex. Two behavioral tasks showed evidence that these two sounds are perceived with unequal salience despite carrying the same physical energy and spectral content, a phenomenon incompatible with linear processing. Recording the activity of large cortical populations for up- and down-ramping sounds, we found that cortex encodes them into distinct sets of non-linear features, and that asymmetric feature selection explained the perceptual asymmetry. To complement these results, we also showed that, in reinforcement learning models, the amount of neural activity triggered by a stimulus (e.g. a sound) impacts learning speed and strategy. Interestingly very similar effects were observed in sound discrimination behavior and could be explain by the amount of cortical activity triggered by the discriminated sounds. This altogether establishes that auditory system nonlinearities have an impact on perception and behavior. To more extensively identify the nonlinearities that influence sounds encoding, we then recorded the activity of around 60,000 neurons sampling the entire horizontal extent of auditory cortex. Beyond the fine scale tonotopic organization uncovered with this dataset, we identified and quantified 7 nonlinearities. We found interestingly that different nonlinearities can interact with each other in a non-trivial manner. The knowledge of these interactions carry good promises to refine auditory processing model. Finally, we wondered if the nonlinear processes are also important for multisensory integration. We measured how visual inputs and sounds combine in the visual and auditory cortex using calcium imaging in mice. We found no modulation of supragranular auditory cortex in response to visual stimuli, as observed in previous others studies. We observed that auditory cortex inputs to visual cortex affect visual responses concomitant to a sound. Interestingly, we found that auditory cortex projections to visual cortex preferentially channel activity from neurons encoding a particular non-linear feature: the loud onset of sudden sounds. As a result, visual cortex activity for an image combined with a loud sound is higher than for the image alone or combine with a quiet sound. Moreover, this boosting effect is highly nonlinear. This result suggests that loud sound onsets are behaviorally relevant in the visual system, possibly to indicate the presence of a new perceptual objects in the visual field, which could represent potential threats. As a conclusion, our results show that nonlinearities are ubiquitous in sound processing by the brain and also play a role in the integration of auditory information with visual information. In addition, it is not only crucial to account for these nonlinearities to understand how perceptual representations are formed but also to predict how these representations impact behavior
Aurélio, Nilvia Herondina Soares. "ADAPTAÇÃO DE PRÓTESES AUDITIVAS EM CRIANÇAS E ADOLESCENTES DO PROGRAMA DE ATENÇÃO À SAÚDE AUDITIVA DA UFSM." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/6472.
OBJETIVOS: analisar o perfil de crianças e jovens, usuários de próteses auditivas, atendidos no programa de atenção à saúde auditiva da Universidade Federal de Santa Maria (UFSM), verificar aspectos relacionados ao uso da prótese auditiva, manutenção e acompanhamento terapêutico, bem como, avaliar o benefício proporcionado pela amplificação sonora neste grupo de estudo. MATERIAL E MÉTODO: participaram deste estudo 70 indivíduos com idade entre 03 e 18 anos e seus familiares, aos quais foi aplicada uma anamnese contendo questões referentes às condições socioeconômicas destes; ao desenvolvimento e desempenho escolar do paciente; ao uso e manutenção das próteses auditivas; ao uso de recursos da comunidade para terapia fonoaudiológica e ao acesso a especialistas; também, foram verificadas as condições técnicas das próteses auditivas. Para avaliar o benefício proporcionado pelas próteses auditivas foi aplicada para as crianças com menos de 04 anos a Escala de Integração Auditiva Significativa para Crianças Pequenas (IT-MAIS); para as crianças de 04 a 07 anos a Escala de Integração Auditiva Significativa (MAIS); e para os indivíduos de 08 a 14 anos o questionário de avaliação do benefício em crianças e jovens, proposto por Boscolo et al (2006). RESULTADOS: foram avaliados 6 pré-escolares (8,6%), 34 crianças (48,6%) e 30 adolescentes (42,9%). Observou-se que cerca de 40% dos indivíduos possuíam perda auditiva de grau profundo; 91,4% dos indivíduos possuíam famílias com renda de 1 a 3 salários mínimos; 80% dos indivíduos freqüentavam o ensino fundamental; 67,1 % dos pacientes possuíam desempenho escolar satisfatório; cerca de 80% dos indivíduos faziam uso efetivo da prótese auditiva; cerca de 20% dos indivíduos encontraram dificuldade de manutenção das próteses auditivas em seu município; 55,7% dos indivíduos recebiam tratamento fonoaudiológico, porém 44,3% não recebiam esse acompanhamento. Somente 1 indivíduo pôde ser avaliado através da escala IT-MAIS, o qual obteve a pontuação 0 (zero), indicando ausência dos comportamentos avaliados pela escala. A escala MAIS foi aplicada a 10 indivíduos, obtendo-se uma pontuação média de 19,9. Foram avaliados 52 indivíduos, através do questionário de avaliação do benefício em crianças e jovens, proposto por Boscolo et al. (2006), tendo sido verificado que em todos os itens analisados (ambiente doméstico, escolar e social), as respostas positivas, relacionadas à presença de benefício proporcionado pelas próteses, foram preponderantes CONCLUSÕES: Evidenciou-se que a maioria dos indivíduos situava-se na faixa etária dos 06 a 12 anos, possuíam perda auditiva do tipo neurossensorial de grau profundo, faziam parte de famílias de baixa renda e possuíam desempenho escolar satisfatório. Também verificou-se que, a maioria das crianças e jovens, fazia uso efetivo das próteses auditivas e o benefício proporcionado pela amplificação, pôde ser evidenciado em diferentes situações da vida diária, tanto pela ótica do paciente, quanto de sua família.
Lopes, Aline da Silva. "ADAPTAÇÃO DE PRÓTESES AUDITIVAS EM ADULTOS E IDOSOS EM UM PROGRAMA DE ATENÇÃO À SAÚDE AUDITIVA." Universidade Federal de Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/6473.
Objetivos: analisar os principais aspectos do Programa de Atenção à Saúde Auditiva da UFSM, pesquisar os possíveis fatores que interferem na adaptação efetiva das próteses auditivas, além de avaliar o desempenho e a satisfação dos indivíduos com o uso das mesmas. Métodos: avaliou-se 67 indivíduos adaptados há mais de um ano, residentes na cidade de Santa Maria. Realizou-se uma anamnese, considerando a qualidade da adaptação, o uso efetivo das próteses auditivas e dificuldades encontradas neste processo. Destes 67, 49 sujeitos com perda auditiva do tipo neurossensorial ou mista, de grau leve a severo na melhor orelha, divididos em grupos de adultos e idosos, foram submetidos à pesquisa dos Limiares e Índices Percentuais de Reconhecimento de Sentenças no Silêncio e no Ruído (LRSS e LRSR, IPRSS e IPRSR), em campo livre, através do teste Listas de Sentenças em Português; e ao questionário de satisfação, International Outcome Inventory for Hearing Aids (IOI-HA). Realizou-se os testes na mesma sessão, em dois momentos distintos, sendo o primeiro, sem o uso das próteses auditivas (LRSS e LRSR, IPRSS e IPRSR) e o segundo, usando as mesmas (IPRSS e IPRSR). Resultados: Os principais resultados evidenciaram que a maioria apresentou perda auditiva do tipo neurossensorial (101 orelhas 75,4%) de grau moderado e moderadamente severo (95 orelhas 70,9%). O tipo de prótese mais utilizado foi o retroauricular (64 indivíduos - 95,5%), tendo sido escolhida a tecnologia B em 30 indivíduos (44,8%), com adaptação bilateral em 60 indivíduos (89,6%). Oito adultos (47,1%) e 20 (40%) idosos relataram usar diariamente ambas as próteses auditivas, sendo que 15 adultos (88,2%) e 31 idosos (62%) relataram usar de 5 a 12 horas diárias. A maioria dos indivíduos não referiu problemas, no entanto as principais queixas quanto aos moldes foram: desconforto físico, tubos rachado/ressecados, inserção/remoção, moldes frouxos e efeito de oclusão, enquanto que, as principais queixas clínicas em relação ao uso das próteses auditivas foram: compreensão da fala no ruído, chiado, amplificação insuficiente e desconforto para sons fortes. Com relação ao desempenho, houve diferença significante em ambos os grupos, nas medidas obtidas no silêncio. Apesar de o desempenho dos usuários na presença de ruído não ter apresentado melhora significante, os pacientes apresentaram respostas satisfatórias no questionário. Comparando a satisfação e o desempenho dos usuários adultos e idosos, não se observou diferença significante. Conclusões: estudou-se apenas metade dos indivíduos selecionados, evidenciando certo afastamento de pacientes do programa, após a doação das próteses auditivas. Constatou-se que a maioria dos indivíduos faz uso diário das próteses auditivas e relatou usar entre 5 a 12 horas diárias. As queixas relatadas são de fácil solução, ratificando a importância do acompanhamento no processo de adaptação. Além disso, a melhora significante do desempenho no silêncio vai ao encontro do relato dos pacientes, os quais referem pouca dificuldade nessa situação. O questionário evidenciou que em ambos os grupos, a maioria referiu fazer uso efetivo das próteses auditivas e considerou ter um benefício muito satisfatório. Apesar de uma parcela significativa referir dificuldade moderada ou bastante dificuldade residual, a grande maioria considerou que o uso das próteses auditivas vale muito ou bastante a pena. Os questionários de auto-avaliação auxiliam no controle do desempenho dos usuários durante o processo de adaptação das próteses auditivas.
Arieta, Aline de Moraes 1981. "Teste de percepção da fala HINT-Brasil, em normo-ouvintes e usuarios de aparelhos auditivos : atenção a saude auditiva." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309219.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
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Resumo: O HINT - Brasil (Hearing in Noise Test, versão em português do Brasil) é um teste de reconhecimento de fala em ruído, que simula situações auditivas assemelhadas às do dia-a- dia. Acrescentado à rotina audiológica nacional, constitui uma importante ferramenta diagnóstica, para avaliar as incapacidades auditivas de portadores de disacusias sensorioneurais em frequências altas, de grande prevalência em nosso meio. A pesquisa objetiva avaliar o desempenho do teste, com e sem ruído competidor, em normo-ouvintes e usuários de aparelhos de amplificação sonora individual (AASI). O teste HINT contém 12 listas de 20 sentenças cada, totalizando 240 sentenças representativas da fala cotidiana, curtas, fonemicamente balanceadas, de fácil compreensão e com o mesmo grau de dificuldade. Os sujeitos foram divididos em: Grupo1, composto por 30 sujeitos com audição normal e média de idade de 31,2 anos (dp 8,0) submetidos ao teste com fones de ouvidos e em campo livre, em quatro condições: com som frontal e sem ruído; com som frontal e ruído frontal, ruído à direita e ruído à esquerda e Grupo 2, composto por 30 sujeitos com perda auditiva sensorioneural, usuários de AASI bilaterais com média de idade de 71,6 anos (dp14,7) submetidos ao teste em campo livre nas quatro condições. Com fones de ouvidos, as médias dos resultados apresentaram-se semelhantes aos de outros estudos, em diversos idiomas, inclusive o português do Brasil: 26,3 dB com som frontal (SRT- sem ruído); relações sinal/ruído (S/R) de -5,1 dB com ruído frontal, -11,9 dB com ruído à direita; -12,1 dB com ruído à esquerda. Em campo livre: 13,5 dB com som frontal (SRT); -3,5 com ruído frontal, 6,5 dB com ruído à direita; -8,0 com ruído à esquerda. Para o Grupo 2 os valores em campo livre, sem AASI foram: 55,8 dB com som frontal (SRT- Sem ruído); relações sinal/ruído (S/R) de 3,5 dB com ruído frontal, 2,2 dB com ruído à direita; 0,4 dB com ruído à esquerda. Com o uso de seus AASI os valores passaram a ser 36,5 dB com som frontal (SRT- Sem ruído); relações S/R de 1,5 dB com ruído frontal, 0,9 dB com ruído à direita; -1,1 dB com ruído à esquerda. Em campo livre, os normo-ouvintes apresentaram melhor desempenho nos testes sem ruído e maior dificuldade com ruído, em relação aos testes com fones de ouvidos. O Grupo 2, com o uso de AASI apresentou valores de relação S/R entre -2 a 0dB de ganho. Na falta de parâmetros nacionais para testes em campo livre os valores médios presentes são sugeridos como referências para futuras comparações. O HINT Brasil mostrou-se um teste eficiente para analisar dificuldades de entendimento de fala em situação de escuta cotidiana
Abstract: The HINT - Brazil (Hearing in Noise Test, version in Brazilian Portuguese) is a test of recognition of speech in noise, which simulates resembled auditory situations to the ones of day-by-day. Added to the national audiological routine, it constitutes an important diagnostic tool to evaluate the hearing impairment of individuals with sensorineural dysacusis in high frequencies, of great prevalence in our environment. The research aims to evaluate the performance of the test with and without competitive noise, in normal-hearing individuals and users of hearing aids. Test HINT contains 12 lists of 20 sentences each, totalizing 240 sentences representative of daily speeches, short, phonemically balanced, of easy understanding and with the same level of difficulty. The individuals had been divided in: Group 1 composed of 30 individuals with normal hearing with average age of 31,2 years (dp 8,0) submitted to the test with earphones and free-field in four conditions: with frontal sound without noise; with frontal sound and frontal noise, noise to the right, and noise to the left and Group 2, composed of 30 individuals with sensorineural hearing loss, using bilateral hearing aids with average age of 71,6 years (dp 14,7) submitted to the free-field test in the four situations. With earphones, the averages of the results showed similar results to other studies in several languages, including Brazilian Portuguese: 26,3 dB with frontal sound (SRT); signal-to-noise ratio (SNR) of -5,1 dB with frontal noise, -11,9 dB with noise to the right; - 12,1 dB with noise to the left. In free-field: 13,5 dB with frontal sound (SRT); -3,5 with frontal noise, -6,5 dB with noise to the right; -8,0 with noise to the left. The results in freefield to Group 2 without hearing aids: 55,8 dB with frontal sound without noise; 3,5 dB with frontal sound and frontal noise, 2,2 dB noise to the right, and 0,4dB noise to the left. With the use of its hearing aids: 36,5 dB dB with frontal sound without noise; 1,5 dB with frontal sound and frontal noise, 0,9 dB noise to the right, and -1,1dB noise to the left. In free field, the normal-listeners presented better performance in the tests without noise and greater difficulty with noise, compared to the tests with earphones. The Group 2, when used of its hearing aids presented values signal-to-noise ratio between -2 and 0dB of profit. In the lack of national parameters for tests in free-field the current average values are suggested as references for future comparisons. The HINT Brazil revealed an efficient test to analyze difficulties of agreement of speaks in situation of daily listening
Mestrado
Epidemiologia
Mestre em Saude Coletiva
Freitas, Thaysa Vidal Dias de. "Potencial Evocado Auditivo de Longa Latência em crianças com deficiência auditiva sensorioneural e usuárias de aparelho de amplificação sonora individual." Pontifícia Universidade Católica de São Paulo, 2014. https://tede2.pucsp.br/handle/handle/11978.
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
To describe the results of long latency auditory evoked potentials, P1-N1-P2 complex, in children with sensorineural hearing impairment and hearing aids users. Method: 10 children with congenital bilateral sensorineural hearing impairment, with symmetrical configuration and moderate to profound degree of hearing loss, were subjects of the present study, age ranging between 2 and 8 years old. The subjects were followed up in a hearing health center in Sao Paulo. Data were collected concerning to the degree of hearing loss, auditory age, age when hearing aids were adapted, approach for speech therapy, and systematic use of hearing aids. The Long Latency Auditory Evoked Potentials (LLAEP) were recorded using insert earphones at 85dBSPL, without hearing aids; the same test was performed in free field at 100dBSPL, with loudspeaker positioned at 90 degrees, aside of the better ear, with subjects using their hearing aids. The equipment used has two recording channels, one to record the LLAEP and the other to record the eyes movements to control the artifact generated. Two recordings were collected to verify the reproducibility of the waves. Results: The latency values of the components P1-N1-P2 in unaided and aided tests were statistically analyzed and described according to the variables. The volunteers with absence of LLEAP in the unaided test had severe and profound hearing loss. When the test was performed with hearing aids through sound field all subjects showed LLEAP. There was significance correlation between auditory age and P1-N1 latency. In the analysis between onset age of hearing aids use, weekly hours of therapy, approach in language therapy, and systematic use of hearing aids, there was no association with the P1-N1-P2 latency. Conclusion: Subjects with moderate degree of hearing loss showed presence of LLAEP in aided and unaided tests; volunteers with severe and profound degree of hearing loss showed absence of LLAEP in unaided tests. All volunteers showed presence of LLAEP in the aided test, independent of the degree of hearing loss. The latency value of P1 was increased, regardless of auditory age
Descrever os resultados dos potenciais evocados auditivos de longa latência, complexo P1-N1-P2, em crianças com deficiência auditiva sensorioneural e usuárias de aparelho de amplificação sonora individual. Método: Participaram da pesquisa 10 crianças com perda auditiva sensorioneural congênita, bilateral, de configuração simétrica, com graus de moderado a profundo, idades entre 2 e 8 anos, e estavam em acompanhamento audiológico num centro de referência em saúde auditiva de São Paulo. Foram coletados dados sobre o grau de perda auditiva, idade auditiva, idade de início do uso do AASI, terapia fonoaudiológica e o uso sistemático do AASI. Os Potenciais Evocados Auditivos de Longa Latência (PEALL) foram registrados utilizando fones de inserção na intensidade de 85dBNPS no teste sem AASI; foi realizado o registro do PEALL em campo livre, por meio de um alto-falante na intensidade de 100dBNPS, no teste com AASI. O equipamento utilizado dispõe de dois canais de registro, sendo que um foi remetido ao registro dos PEALL, e o outro, ao registro do movimento ocular para controle do artefato gerado. Resultados: Os valores de latência dos componentes P1-N1-P2 nos testes sem e com AASI foram analisados estatisticamente e descritos de acordo com as variáveis do estudo. Os voluntários com ausência dos PEALL no teste sem AASI tinham grau de perda auditiva severa e profunda. No teste com AASI, em toda a amostra foram identificados os PEALL. Houve uma correlação sugestiva de significância entre a idade auditiva e o tempo de latência de P1-N1. Na análise entre idade de início do uso do AASI, horas semanais de terapia, abordagem terapêutica e uso sistemático do AASI, não houve associação com a latência de P1-N1. Conclusão: Voluntários com o grau de perda auditiva moderado apresentaram presença dos PEALL nos testes sem e com AASI; os voluntários que tinham o grau de perda auditiva severa e profunda apresentaram ausência dos PEALL nos testes sem AASI. Todos os voluntários tiveram presença dos PEALL independente do grau de perda auditiva, no teste com AASI. O valor de latência de P1 foi aumentado, independente da idade auditiva
Llave, Adrien. "Amélioration de la compréhension de la parole et de l’écoute spatiale pour les malentendants appareillés." Electronic Thesis or Diss., CentraleSupélec, 2022. http://www.theses.fr/2022CSUP0003.
Hearing aids are designed to restore the essential abilities of hearing, the most important of which is speech intelligibility. This is achieved mainly through two functions: compensating for hearing loss and reducing the noise level. Noise reduction and hearing loss compensation are performed one after the other. However, both have antagonistic objectives and introduce artifacts that are detrimental to the apprehension of a complex auditory scene in its entirety. In a first step, we unify the formalism underlying the denoising and loss compensation algorithms in order to develop an explicit solution to the problem as a whole, for an auditory scene composed of one speech source and an ambient noise. In a second step, we focus on a better preservation of the interaural localization cues for all spatial directions. For this purpose, we develop three methods based on approximations of the cost function related to the interaural transfer function preservation. Finally, we extend the auditory scene model to several speech sources and ambient noise. The context of hearing aids makes this case difficult to handle due to the small number of microphones. We propose to exploit the sparsity property of speech in the time-frequency domain to overcome this obstacle
Bidet-Caulet, Aurélie. "Mécanismes neurophysiologiques de la perception de flux sonores chez l’Homme : effets des contexts acoustiques et attentionnels." Lyon 1, 2007. http://tel.archives-ouvertes.fr/docs/00/18/90/55/PDF/these26-09-07.pdf.
Auditory perception is especially based on the separation of simultaneously active sound sources (auditory scene analysis) and the encoding of spatial and spectral attributes. We have characterized the neurophysiological mechanisms underlying these processes by investigating the cortical electrophysiological responses to long-lasting auditory streams, in various acoustical and attentional contexts. The results suggest a differential encoding of spatial and spectral features in the auditory cortex. The perception of two concurrent auditory streams would depend on frequency selectivity and habituation mechanisms. Auditory attention could facilitate sound selection in an acoustic mixture by enhancing cortical responses to relevant information and reducing responses to distracting sounds. A fronto-parietal network could be involved in the control of these mechanisms
Figueiredo, Renata de Souza Lima. "Processos de verificação e validação da amplificação em crianças com deficiência auditiva: índice de inteligibilidade de fala - SII e comportamento auditivo." Pontifícia Universidade Católica de São Paulo, 2013. https://tede2.pucsp.br/handle/handle/11958.
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Objective: to establish the relationship between audibility for speech sounds, audiological characteristics and auditory behavioral responses in infants and children under three years of age with sensorineural hearing loss. Method: 41 children aged between 4 and 80 months participated in the study. Seventy-eight ears were analyzed. Auditory thresholds at 250, 500, 1000, 2000 and 4000Hz were considered and values of speech intelligibility index (SII) for the input signals 55, 65 and 75dB SPL were obtained in the Verifit®Audioscan hearing aid analyzer. Three hundred and twelve SII values were obtained. To study the relationship between audibility and auditory behavioral responses, 8 children aged between 11 and 28 months were selected. Auditory response for speech stimulus was observed (the Ling six and four onomatopoeias), before and after the stimuli familiarization activity, controlled by a decibel meter at different distances between evaluator and hearing aid microphone. Other variables were considered for auditory response quality analysis, besides SII values, when identified discrepancy between the expected and the observed behavior in each case. Results: the hearing thresholds have been classified into five groups as homogeneous audiological characteristics (degree and audiometric configuration) and heterogeneous among themselves. Three ranges of SII values were determined from within the groups. The range of 36 to 55% was the most affected by input signal intensity changes. Equations for classification of hearing loss as groups and equations for determination of adjusted SII values were established. In the 8-case study, two children with audibility expressed by SII 65 values lower than 20% did not provide answers for longer distances. In all cases, changes were observed in quality of post-familiarization-activity auditory behavior response. Complex factors such as otitis media, inconsistency of hearing aid use and hearing loss progression were present in some cases and seem to have influenced the quality of auditory behavior observed. Conclusions: SII is an objective measure that allows for amplification adequacy assessment of different hearing loss characteristics, as well as determination of hearing capacity. SII has a stronger correlation with the dynamic relationship between the degree and configuration of hearing loss, when compared to the relationship with the degree of hearing loss alone. Therefore a new classification of hearing loss by groups was established. Hearing losses Gr4 with SII values between 36 to 55% are most affected when the input signal intensity or the distance between speaker and the hearing aid microphone changes. The process of amplification validation in infants with systematic auditory behavior evaluation through familiarization stimuli tests showed that children of up to three years need to be familiar with the stimuli in order to trigger observable auditory responses, thus ensuring results compatible with auditory capacity. Cases classified with hearing loss group Gr4 showed changes in auditory response quality at greater distances. Complex factors affect the quality of auditory behavior responses observed
Estabelecer a relação entre audibilidade para sons de fala e características audiológicas e de respostas comportamentais em bebês e crianças com até três anos de idade usuárias de aparelhos de amplificação sonora. Métodos: Para estudar a relação audibilidade e características audiológicas, foram selecionadas 41 crianças com idades entre 4 e 80 meses, totalizando 78 orelhas para análise. Foram considerados os limiares auditivos nas frequências 250, 500, 1000, 2000 e 4000Hz e analisados valores do índice de inteligibilidade de fala (SII) para os sinais de entrada 55, 65 e 75dB NPS, obtidos na verificação dos AASI no equipamento Verifit®Audioscan, totalizando 312 valores de SII. Para estudar a relação audibilidade e respostas comportamentais, foram selecionados 8 crianças com idades entre 11 e 28 meses. O comportamento auditivo foi observado por meio do instrumento de avaliação sistemática do comportamento auditivo para sons de fala (Os seis sons de Ling e 4 onomatopeias) antes e depois de atividade de familiarização dos estímulos em 3 diferentes distâncias entre o avaliador e o microfone do AASI. A intensidade do dos estímulos foi controlada com decibelímetro. A qualidade das respostas foi analisada considerando variáveis de confusão quando identificada discrepância entre o comportamento esperado e observado em cada caso. Resultados: As perdas auditivas foram classificadas em cinco grupos homogêneos quanto as características audiológicas (grau e configuração audiométrica) e heterogêneos entre si. A partir dos grupos determinou-se 3 intervalos de valores de SII. O intervalo de valores SII entre 36 a 55% foi o mais afetado quando alterada a intensidade do sinal de entrada. Foram determinadas equações para classificação da perda auditiva conforme grupos e, equações para determinação de valores de SII ajustado. No estudo dos 8 casos, observou-se que as duas crianças com audibilidade expressa por valores de SII 65 piores que 20% não apresentaram repostas para distâncias maiores. Para todos os casos observou-se mudança na qualidade da resposta auditiva após a familiarização dos estímulos. Fatores complexos como otite média de repetição, inconsistência no uso da amplificação e progressão da perda auditiva estavam presentes em alguns dos casos estudados e parecem ter influenciado na qualidade do comportamento auditivo observado. Conclusões: O SII é uma medida objetiva que permite avaliar a adequação da amplificação para diferentes características de perdas auditivas e, determinar a capacidade auditiva. O SII tem relação mais forte com a relação dinâmica entre o grau e configuração audiométrica, quando comparada com sua relação com o grau da perda auditiva isoladamente. Para tanto uma nova classificação da perda auditiva por grupos foi determinada. Perdas auditivas classificadas no Gr4, com valores de SII no intervalos de 36 a 55% são as mais afetadas quando alterada a intensidade do sinal de entrada ou a distância entre o falante e microfone do AASI. O processo de validação da amplificação em crianças com a avaliação sistemática do comportamento auditivo com a familiarização dos estímulos de teste, mostrou que as crianças até três anos de idade precisam conhecer os estímulos para que respostas auditivas sejam possíveis de ser observadas, garantindo assim a fidedignidade dos resultados. Casos classificados com perdas auditivas no Gr4 apresentaram mudanças na qualidade das respostas auditivas observadas para as distâncias maiores. Fatores complexos afetam a qualidade das respostas auditivas observadas
Souza, Ruth Maria Magalhães Eringer de [UNIFESP]. "O impacto da deficiência auditiva na qualidade de vida do idoso, antes e um ano após a adaptação de próteses auditivas." Universidade Federal de São Paulo (UNIFESP), 2010. http://repositorio.unifesp.br/handle/11600/9854.
O objetivo desta pesquisa foi estudar os efeitos da intervenção fonoaudiológica por meio de adaptação de próteses auditivas na qualidade de vida do idoso, segundo as variáveis sexo e faixa etária. Método: Participaram do estudo 50 idosos, sendo 23 do sexo feminino e 27 do sexo masculino. Os idosos foram distribuídos em dois grupos etários: Grupo 1 – composto por 24 idosos, 11 do sexo feminino e 13 do sexo masculino, com idade entre 60 a 74 anos e Grupo 2 (G2) – composto por 26 idosos, 12 do sexo feminino e 14 do sexo masculino, com idade igual ou superior a 75 anos. Os idosos foram avaliados antes da adaptação das próteses auditivas e um ano após a adaptação das próteses auditivas, por meio de questionários, HHIE e SF 36, e o teste MEEM. Foram realizados acompanhamentos bimensais a fim de garantir o uso efetivo das próteses auditivas. Resultados: A análise do HHIE revelou que os escores das Escalas Emocional e Social no período pós intervenção foram estatisticamente significantes, nas duas faixas etárias, tanto no sexo masculino quanto no sexo feminino. Os resultados do teste MEEM revelaram que os escores no período pós intervenção foram estatisticamente significantes, e estas diferenças ocorreram independente do sexo e da faixa etária. No questionário SF 36, os resultados de seis dos oito aspectos analisados revelaram resultados estatisticamente significantes no período pós intervenção, sendo capacidade funcional, aspecto físico, vitalidade, aspecto emocional, aspecto social e saúde mental. Os aspectos dor e saúde geral não apresentaram resultados significantes no período pós, no entanto no aspecto dor os idosos do grupo 2 apresentaram resultados significantes no período pós. Conclusão: Há menor autopercepção das restrições de participação após a intervenção fonoaudiológica nas Escalas Social e Emocional do questionário HHIE. Os idosos do sexo masculino apresentam maior autopercepção das restrições de participação na Escala Emocional e Escala Social, no período pré intervenção. Os idosos do Grupo 2 apresentam maior auto percepção da restrição de participação na Escala Emocional no período pré. Os idosos revelaram melhores resultados no teste MEEM no período pós, independente do sexo e faixa etária. Há melhora na qualidade de vida demonstrada nos Aspectos Capacidade Funcional, Físico, Vitalidade, Emocional, Social e Saúde Mental do questionário SF36 no período pós, independentemente do sexo e faixa etária.
The objective of this research was to study the effects of audiologic rehabilitation through hearing aids on quality of life of the elderly, according to gender and age. Method: The study included 50 elderly, 23 were female and 27 male. The patients were divided into two groups: Group 1 - includes 24 seniors, 11 females and 13 males aged 60 to 74 years and Group 2 (G2) - composed of 26 seniors, 12 females and 14 male, aged over 75 years. The patients were evaluated before the hearing aids fitting and a year after the adaptation of hearing aids, through questionnaires, HHIE and SF 36, and test MMSE. Bi-monthly follow-ups were conducted to ensure the effective use of hearing aids. Results: Analysis of HHIE revealed that the scores of the Emotional and Social Scales in the period after intervention were statistically significant in both age groups, both male and female. The test results showed that the MMSE scores in the period after intervention were statistically significant, and this difference was independent of sex and age. In SF 36, the results of six of the eight aspects studied showed statistically significant results in the post intervention, and functional ability, physical appearance, vitality, emotional aspects, social aspects and mental health. Aspects pain and general health showed no significant result in the post, however aspect pain in the elderly group 2 showed significant results in the post. Conclusion: There is little self-perception of participation restrictions after audiologic rehabilitation in the Social and Emotional Scales of HHIE. Elderly men have a greater self-perception of the restrictions on participation in the emotional aspect and social aspect, in the pre intervention. Elderly Group 2 have higher self-perception of the restriction of participation in the emotional aspect in the period before. The elderly showed better results in the MMSE test in the post regardless of sex and age. There is improvement in quality of life demonstrated in the aspects Functional Capacity, Physical, Vitality, Emotional, Social and Mental Health in the SF-36 questionnaire in the period after regardless of sex and age.
TEDE
BV UNIFESP: Teses e dissertações
Bosso, Janaina Regina. "Ajustes das características eletroacústicas do aparelho de amplificação sonora individual com base em limiares auditivos tonais e resposta auditiva de estado estável." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/47/47135/tde-15122009-123157/.
The impossibility for obtaining behavioral auditory data in children with hearing loss brings the necessity of applying objective tests as auditory steady state responses (ASSR) in order to evaluate the auditory thresholds. The objective of this study was to verify the differences found on the selection of the eletroacoustic characteristics of the hearing aid (AASI) based on the auditory thresholds, obtained by the auditory steady state responses (ASSR) in comparison with the same procedure realized, based on audiometric thresholds: A total of 28 people with sensorineural hearing loss were studied: group A comprised 10 adults (average age 46,3 years) and group B comprised 18 children (average age 10,38 years). The prescriptive method applied was Desired Sensation Level (DSL) i/o version 4.1. The individualized measurement of RECD was applied as acoustic transformer. Three different programs were generated considering the audiometric thresholds on the frequencies from 0,25 to 6kHz (complete tonal program- ProTC), the audiometric thresholds just on the frequencies 0,5, 1, 2 and 4 kHz (tonal program- ProT) and the auditory thresholds obtained by the ASSR on the frequencies 0,5, 1, 2 and 4 kHz (electrophysiological program ProE). The verification of the amplification was realized by a coupler of 2cc. The evaluation of speech recognition in noise (group A and B) and the judgment of sound quality (group A) was performed. The results showed that the Real Ear Aided Response prescribed (REAR P) were higher for the program based on the auditory thresholds estimated by the ASSR. The differences were significant, for all the levels of intensity tested, for the frequencies 0,5, 1, 2 and 2 kHz in group A and in all the frequencies in group B. The difference between REAR P and the REAR measured in coupler of 2cc (REAR M) was lower than 1,4dB for all the frequencies and intensities studied, for groups A and B. Differences were not found between the REAR M obtained on the ProTC and ProT. The results for REAR M obtained on the ProE were higher than the ones obtained on the programs ProTC and ProT. Significant differences were not found in the evaluation for the speech perception in adults. For children, significant differences were found for S/N on the ProE when compared to the program ProTC and ProT. On the evaluation of the sound quality, the results showed worse judgment of the dimensions evaluated, on the ProE. However, a significant difference was found for auditory comfort dimension. The outcomes of the present study shows that the auditory threshold obtained by the ASSR can be employed for the determination of the electroacoustic characteristics of the hearing aids in adults and children.
Parseihian, Gaëtan. "Sonification binaurale pour l'aide à la navigation." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2012. http://tel.archives-ouvertes.fr/tel-00771316.
Leusie, Séverine. "Privation sensorielle auditive et réhabilitation chez le sujet âgé : conséquences sur le fonctionnement cognitif." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10043/document.
Presbycusis is a disease that occurs in more than 12 million French people, but which is still not well known. If it is not treated early, it can lead to serious complications such as communication disorders, depression and cognitive impairment. The current situation is that very few presbycusic patients are treated, and when they are, the result seems insufficient. The purpose of this thesis is to propose using current data, solutions tailored to the needs of these patients, from screening to rehabilitation. Three studies were conducted: the "AcoumAudio" Study, available in three components showed that the vocal acoumetry was a good hearing test to screen elderly people, to evaluate the degree of hearing disorders and to measure functional auditory gain after rehabilitation; Study 1 entitled "Auditory deprivation and cognitive functioning in the elderly" showed that wearing hearing aids could preserve from cognitive deterioration; and Study 2 entitled "Feasibility of a Conjoint Rehabilitation involving audiology and speech therapy for presbycusis (FRéCAOP)" showed that it was possible to offer a more complete and efficient management of presbycusis, in the hearing circuit of GRAPsanté, necessarily including a caregiver
Freitas, Carine Dias de. "RESULTADOS E IMPLICAÇÕES DO PROCESSO DE ADAPTAÇÃO DE PRÓTESES AUDITIVAS EM USUÁRIOS ATENDIDOS EM UMA INSTITUIÇÃO PÚBLICA FEDERAL." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/6604.
According to Ministério da Saúde is there the necessity to survey of the Country situation in relation to the hearing impairment, between the many aspects it is the hearing aid supply and the results after the act of receiving it, what it would make possible an improvement of the actions planning in Auditory Health Attention. Some research have been carried through with hearing aid users, meantime in the specialized literature, studies related with fitted users saw in the Sistema Único de Saúde, had not been found. Thus being, this study has like aims: to verify the difficulties related to the use and battery manipulation and ear molds and to the characteristics of the amplification in this group of study; and to compare the intervention results from self-assessment questionnaires in patients with and without related complaints with the characteristics of the amplification. In this way, the study consisted of individuals with symmetrical bilaterally hearing losses, sensorineural or mixed, from moderate to moderately severe degrees, between 12 and 77 years age, all hearing aid users of digital or hibrid for a minimum period of three months. Initially, it was carried through an interview with topics related to the experience and the use and battery manipulation, ear molds and hearing aids in the 31 individuals of the study. After, they had been applied in 25 individuals, the evaluations with self-assessment questionnaires HHIE-S (Hearing Handicap Inventory will be the Elderly Screening Version) or HHIA (Hearing Handicap Inventory will be Adult) and APHAB (Abbreviated Profile of Hearing Aid Benefit), which had allowed to verify the difficulties tried in the daily life communication situations in individuals without (Group 1) and with complaints related to the amplification characteristics (Group 2). Of the 31 interviewed individuals, 21 users had presented some kind of complaint related to hearing aids characteristics. Already in relation to the evaluations with self-assessment qestionnaires, applied in 25 of them, there was not found significant difference statistical among the studied groups in relation to questionnaires HHIE-S and HHIA, and about the APHAB significant difference statistical only in communication favorable situations of was evidenced, having Group 1 gotten benefit better. In HHIE-S and HHIA, the means values of hearing handicap was 34,71% for Group 1 and 45,82% for Group 2, indicating a bigger perception for the group with complaints. The values of benefit in the APHAB for Group 1 was 68,62% (FC), 37,12% (RA), 48,38 (RV) and -9,25 (AS) and in Group 2, it verified 39,59% (FC), 38,12% (RA), 39,88% (RV) and -28,18% (AS), evidencing a significant reduction of the hearing disabilities with the use of the hearing aids in communication favorable situations (FC), in reverberant environments (RV) and in the ambient noise presence (RA) for both groups. In negative situations of perception of the ambient sounds (AS), the performance with the use of the hearing aid was worse for both groups, confirmed for the negative values of benefit. Finnaly, the critical appreciation of the results allowed to conclude that 12.90%, 58,06% and 67,74% of the interviewed individuals (N=31) had presented difficulties related to the battery, to the ear molds or capsules and to the amplification characteristics, respectively; and significant differences between the groups studied (N=25) in the HHIE-S and HHIA protocols, as well as in the APHAB had not been found, except in sub-scale favorable communication situations, where Group 1 (without complaints) got benefit better.
Segundo o Ministério da Saúde há a necessidade de se realizar um levantamento da situação do País em relação à deficiência auditiva, entre os vários aspectos está o fornecimento da prótese auditiva e os resultados da protetização após o recebimento, o que possibilitaria uma melhoria do planejamento das ações em Atenção à Saúde Auditiva. Várias pesquisas têm sido realizadas com usuários de próteses auditivas, entretanto não foram encontrados na literatura especializada estudos relacionados com usuários adaptados via Sistema Único de Saúde. Assim sendo, este estudo teve como objetivos: verificar as dificuldades relacionadas ao uso e manuseio de pilhas e moldes auriculares e às características da amplificação neste grupo de estudo; e comparar os resultados da protetização a partir de questionários de auto-avaliação em pacientes com e sem queixas relacionadas às características da amplificação. Deste modo, o estudo constituiu-se de portadores de perdas auditivas bilaterais simétricas, neurossensoriais ou mistas, de graus moderado a moderadamente severo, entre 12 e 77 anos de idade, todos usuários de próteses auditivas com rocessamento do sinal digital ou analógico programável via computador por um período mínimo de três meses. Inicialmente, foi realizada uma entrevista com tópicos relacionados à experiência e ao uso e manuseio das pilhas, moldes e próteses auditivas nos 31 indivíduos participantes do estudo. Após, foram aplicados em 25 indivíduos, os questionários de auto-avaliação HHIE-S (Hearing Handicap Inventory for the Elderly Screening Version) ou HHIA (Hearing Handicap Inventory for Adult) e APHAB (Abbreviated Profile of Hearing Aid Benefit), os quais permitiram verificar as dificuldades experimentadas nas situações de comunicação em atividades diárias nos indivíduos sem (Grupo 1) e com queixas relacionados às características da amplificação (Grupo 2). Dos 31 indivíduos entrevistados, 21 usuários apresentaram algum tipo de queixa relacionado ao funcionamento das próteses auditivas. Já em relação aos questionários de auto-avaliação, aplicados em 25 deles, não se encontrou diferença estatisticamente significante entre os grupos estudados em relação aos questionários HHIE-S e HHIA, e quanto ao APHAB constatou-se diferença estatisticamente significante apenas em situações favoráveis de comunicação, tendo o Grupo 1 obtido melhor benefício. No HHIE-S e HHIA, o índice percentual médio do handicap auditivo foi 34,71% para o Grupo 1 e 45,82% para o Grupo 2, indicando uma maior percepção do handicap auditivo pelo grupo com queixas. Encontraram-se valores de benefício no APHAB para o Grupo 1 de 68,62% (FC), 37,12% (RA), 48,38% (RV) e -9,25% (AS) e no Grupo 2, verificou-se índices de 39,59% (FC), 38,12% (RA), 39,88% (RV) e -28,18% (AS), evidenciando uma redução significativa da incapacidade auditiva com o uso das próteses em situações favoráveis de comunicação (FC), em ambientes reverberantes (RV) e na presença de ruído ambiental (RA) para ambos os grupos. Em situações negativas de percepção dos sons ambientais, o desempenho com o uso das próteses auditivas foi pior para ambos os grupos, confirmado pelos índices negativos de benefício na sub-escala AS. Ao término deste estudo, a apreciação crítica dos resultados permitiu concluir que 12,90%, 58,06% e 67,74% dos indivíduos entrevistados (N=31) apresentaram dificuldades relacionadas às pilhas, aos moldes ou cápsulas auriculares, e às características da amplificação, respectivamente; e diferenças significantes entre os grupos estudados (N=25) nos protocolos HHIE-S e HHIA, bem como no APHAB não foram encontradas, exceto na sub-escala facilidade de comunicação, onde o Grupo 1 (sem queixas) obteve melhor benefício.
Vitto, Ursula Maria Lellis de. "Efeito nas mudanças temporárias dos limiares auditivos durante o uso de próteses auditivas de alta potência." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/5/5160/tde-14102014-113516/.
It is well known that the temporary threshold shift in hearing sensitivity is the most obvious hearing effect of the high level acoustic stimulation. Temporary threshold shifts induced in the aided ears were measured in 25 patients after the use of the hearing aids fitted in the prescribed gain during a controlled exposition time (2 a 2 ½ h) to an environmental noise. The study was performed in three phases. In the first phase a first measure of the temporary threshold shift was obtained for 42 aided ears (25 patients) in order to measure the initial amount of temporary threshold shift induced by the hearing aids fitted in the prescribed acoustic gain. In the second phase the ears were included into two study groups: The Experimental Group (EG) formed by 22 ears (13 patients) with greater temporary threshold shift in the initial measure and the Conventional Group(CG) , formed by 20 ears with the shorter temporary threshold shift in the initial measure . The hearing aids amplification in the 22 aided ears of the Experimental Group was reduced during the daily use for a \"training\" period of about 60 to 90 days, and after that was turned to the prescribed gain. The prescribed gain was not modified to the 20 ears of the Conventional Group. Four measure of temporary threshold shift were performed in the second phase when the patients included in the two groups were exposed to an environmental noise in the same conditions used to obtain the initial measure. The last measure (post-experimental phase) of the temporary threshold shift was performed in the same conditions , 30 days in average after the patients of Experimental Group had returned to use their hearing aids in the prescribed gain. In the Experimental Group, the analysis of the variance (ANOVA) showed significant differences(f<0,05) in the amount of induced temporary threshold shifts measured during the three phases of the study. Fifteen or thirteen five days after the training had begun the amount of temporary threshold shift increase, but with the continuous training it was gradually to reduced .In the end of the study, the last measure (post-experimental phase) was performed and the amount of temporary thresholds shift was very shorter. This reduction of temporary threshold shift was initially verified in the frequencies below 1000 Hz and at the end of the study all of the frequencies initially affected during the exposition time to the environmental noise (250 to 2000 Hz) were significantly reduced. In the ears included in the Conventional Group it was not verified temporary threshold shift statistically significant (f>0,05) in any moment, but in the low frequencies (250 Hz) it was noticed a gradually reduction of the amount of temporary threshold shift during the period of this study
Hennig, Tais Regina. "REABILITAÇÃO AUDITIVA DE IDOSOS EM UM PROGRAMA DE ATENÇÃO À SAÚDE AUDITIVA." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/6503.
As dificuldades observadas em idosos quanto ao reconhecimento de fala na presença de estímulos competitivos, e para realizarem o uso, manuseio e cuidados adequados das próteses auditivas, serviram de motivação para a realização do presente estudo, que objetivou avaliar os efeitos de um programa de reabilitação auditiva nas habilidades de reconhecimento de fala, no silêncio e no ruído, e ordenação temporal dos padrões de duração e frequência dos sons, e abordar algumas das questões práticas a serem consideradas no processo de adaptação de próteses auditivas em idosos. O grupo estudado foi composto por 17 idosos, novos usuários de próteses auditivas, adquiridas através do Sistema Único de Saúde, entre a faixa etária de 60 e 84 anos de idade, distribuídos em Grupo Controle, que somente fez uso das próteses auditivas, e Grupo Estudo, submetido a um programa de reabilitação auditiva, estruturado em sete sessões, que abrangeu o aconselhamento e treinamento auditivos. Todos os indivíduos foram submetidos a dois momentos distintos de avaliação, inicial e final do estudo, que totalizou sete semanas entre as avaliações. No artigo I foram considerados os resultados obtidos para o reconhecimento de fala, no silêncio e no ruído, através do teste Listas de Sentenças em Português, e analisadas as questões práticas a serem consideradas no processo de adaptação de próteses auditivas em idosos, e no artigo II, os resultados obtidos para a habilidade de ordenação temporal dos sons, através dos testes Padrões Sequenciais de Duração e Padrões Sequenciais de Frequência. Concluiu-se que os sujeitos de ambos os grupos não apresentaram melhora satisfatória no reconhecimento de fala, tanto no silêncio, quanto no ruído. Por outro lado, os sujeitos submetidos ao programa de reabilitação auditiva apresentaram melhora estatisticamente significante para realizar o reconhecimento, ordenação temporal e nomeação dos padrões de duração e de frequência dos sons, e demonstraram maior independência e segurança quanto às competências práticas consideradas nesse estudo, em relação aos idosos que somente fizeram uso das próteses auditivas, durante o mesmo período.
Raimundo, Jesiela Cristina. "Desempenho em tarefas de percepção de fala de crianças com deficiência auditiva: familiaridade da lista de palavras." Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/12203.
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Hoshii, Lia Auer. "Estudo do potencial evocado auditivo de longa latência em um grupo de crianças deficientes auditivas usuárias de aparelhos de amplificação sonora individual: estudo de caso." Pontifícia Universidade Católica de São Paulo, 2010. https://tede2.pucsp.br/handle/handle/12285.
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Introduction: Recent scientific studies use Long-Latency Auditory Evoked Potentials in order to measure the developmental status and plasticity limits of central auditory pathways. Goal: To study Long-Latency Auditory Evoked Potentials outcomes in hearing impaired children wearing hearing aids and personal sound amplification devices. Method: Case studies of five subjects, male and female, diagnosed with mild to profound neurosensory hearing loss, ages ranging from seven to 19 years old. The subjects were submitted to Long-Latency Auditory Evoked Potentials and Cognitive Potential (P300). The latency of components P1, N1, N2, P2 and P300 were analyzed. Prior evaluations consisting of inspecting the external acoustic meatus, tympanometry and pure tone audiometry were performed. Four of the subjects performed the Long-Latency Auditory Evoked Potentials only once. One subject performed the test twice, since he was discharged from speech therapy and stopped using the hearing aids for five months. Results: It was possible to measure the components P1, N1, P2, N2 and P300 for all subjects. Subject 1 presented delayed latency for components P1, N1 and P2 on the right ear, and no response for P1 and N1 on the left ear. Subject 2 presented no response for component P1 bilaterally. Subject 3 presented delayed latency for components P2 and N2 on the right ear and no response for P1 on the left ear. Subject 4 presented delayed latency for N2 and P300 on the right ear. Subject 5 presented delayed latency for components N1 and N2 bilaterally, for P2 on the left ear and no response for P1 on the right ear. The second test collected showed a delay in almost all components of the Long Latency Auditory Evoked Potentials, except for N1 and P2 on the right ear. Conclusions: It is possible to perform Long-Latency Auditory Evoked Potentials in hearing impaired children who wear hearing aids and personal sound amplification devices from the age of 8 years. Degree of hearing loss, lack of systematic use of personal sound amplification devices, and long term sound deprivation can affect the results of Long-latency Auditory Evoked Potentials., and consequently the neural plasticity process
Introdução: Estudos recentes na área da audição utilizam o registro dos Potenciais Evocados Auditivos como forma objetiva de mensurar o status do desenvolvimento e os limites da plasticidade das vias auditivas centrais, por meio dos Potenciais Auditivos de Longa Latência. Objetivo: Estudar os resultados dos Potencias Evocados Auditivos de Longa Latência em crianças deficientes auditivas usuárias de aparelho de amplificação sonora individual. Método: Consiste no estudo de caso de cinco sujeitos os quais apresentavam deficiência auditiva neurossensorial de grau leve a profundo, do sexo masculino e feminino, na faixa etária de sete a 19 anos. Os sujeitos deste estudo foram submetidos ao registro do Potencial Evocado Auditivo de Longa Latência e Potencial Cognitivo, denominado P300. Foram analisadas as latências dos componentes P1, N1, N2, P2 e P300. Previamente ao registro dos potencias evocados de longa latência foram realizadas a inspeção do meato acústico externo, timpanometria e audiometria tonal. Resultados: Foi possível registrar os componentes P1, N1, P2, N2 e P300 em todos os sujeitos. Dessa forma, o sujeito 1 apresentou latência aumentada para componentes P1, N1, P2 à direita e P1 e N1 ausentes à esquerda. O sujeito 2 apresentou apenas o componente P1 ausente bilateralmente. O caso 3 apresentou aumento das latências dos componentes P2 e N2 à direita e ausência do P1 à esquerda. No sujeito 4 foi registrado aumento das latências N2 e P300 à direita. E para o sujeito 5 aumento das latências dos componentes N1 e N2 bilateralmente, P2 à esquerda e ausência do P1 à direita. Em seu segundo exame, foi registrado um aumento em quase todos os componente do PEALL, com exceção N1 e P2 à direita. Os resultados deste estudo indicam que a perda auditiva teve relação com os resultados do componente P1 registrado nos sujeitos deste estudo. Parecendo assim, que quanto maior o grau da perda auditiva, maior é a latência deste componente. Já os outros componentes N1, P2, N2, parecem ter relação com a quantidade de estimulação que o sujeito recebe, ou seja, quanto à sistematicidade de estimulação auditiva. Quanto menos o sujeito usou AASI, mais alterado se deu o registro destes potenciais. Conclusões: Concluiu-se que é possível a realização do registro dos Potenciais Evocados Auditivos de Longa Latência em crianças deficientes auditivas usuárias de aparelho de amplificação sonora individual a partir dos oito anos de idade. Fatores como grau da perda auditiva, a não sistematicidade na utilização do aparelho de amplificação sonora individual e um longo tempo de privação auditiva parecem afetar os resultados dos Potencias Evocados Auditivos de Longa Latência, o que nos sugere um efeito na plasticidade das vias auditivas centrais
Ascencio, Ana Carolina Soares. "A Teleducação interativa na capacitação de profissionais em saúde auditiva." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/25/25143/tde-12062012-162945/.
Introduction: Telehealth is characterized by the use of information technology and communication in healthcare. In audiology, the use of this tool through Telecare and Tele-education is characterized as an important strategy that leads the information for students, professionals, patients and the general community. This factor, combined with the large geographical extent of Brazil and the heterogeneous distribution of health professionals, meets the need of specialized care for patients and decentralization of knowledge for professionals. In this context, the use of Tele-education has emerged as a proposal to minimize the difficulties encountered by the patient in the process of adaptation of a hearing aids (HA), in which many educational materials are produced in order to guide and facilitate the adaptation HA to their new reality. Objective: This project aims to develop a training program through the Interactive Tele-education on the individual sound amplification devices, and analyze the effectiveness of the same as learning and motivation. Results: The first stage of the preparation of the training program, which was developed on the theme Cybertutor hearing aids and tools discussion forum and web conferencing in order to supplement learning. In the second stage, regarding the analysis of the program, it was found that there was no statistical significance in the learning aspect of the content, in the pre and post test. Regarding the motivation of staff, the study was positive, which was assessed as \"impressive progress\". Discussion: The training program was developed, backed up by studies aimed at developing distance learning materials. In that refer to results of the evaluation, all difficulties found in this aspect corroborated with the literature. Conclusion: The development of the Training Program through the Interactive Tele-education on the subject of HA was performed satisfactorily, reaching a level of motivation in relation to participation highly positive, but the comparison results of the evaluation of the problem situation pre and post-test were not statistically significant.
Almodovar, Stéphane. "Elaboration d'une méthode originale de caractérisation des aides auditives : mise au point d'un protocole expérimental." Toulouse 3, 2002. http://www.theses.fr/2002TOU30136.
Campos, Karis de. "Construção de um material educativo na orientação do deficiente auditivo idoso." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/25/25143/tde-05072011-092429/.
Introduction: The high rate of aging is a phenomenon that has occurred worldwide, including Brazil and the process leads to physical, cognitive and sensory. One change is the sensory hearing loss, which may cause the wearer to isolation. The hearing aids (HA) are used to minimize the effects of hearing loss producing good results. However, the difficulty in handling the hearing aid is one of the factors that make a person deaf procrastinate or abandon the use. Teleducation initiatives have been successful using the instruction of individuals in health, including Speech Pathology and Audiology area. Therefore, it is necessary to develop projects that assist the hearing impaired elderly in the process of fitting of hearing aids. Objective: To evaluate the DVD \"Knowing and Understanding about My Hearing Aid\" in the process of fitting of hearing aids. Methodology: The methodology was divided into two stages of development. In the first phase of the first stage, the mentioned educational materials on DVD was first evaluated by 22 audiologists and 25 elderly hearing aid users. In the second phase of the first stage, the suggestions made by the evaluators were analyzed for the restructuring of this DVD Volume 1. The second step was to verify the effectiveness of the new version of the DVD along with the elderly hearing impaired individuals new hearing aid users, with a control group of 14 individuals who received only hearing aid orientation and the experimental group, composed of 13 individuals who apart from hearing aid orientation, also received educational materials on DVD Volume 2. The effectiveness of the DVD version was measured by using the PHAST questionnaire, which was applied in groups E and F. Results: In the first stage, the evaluators suggested updating of models of BTE hearing aids, insertion time of cell activation and slower rate of speech and subtitles. The restructuring of the teaching material on DVD was accomplished through funding from FAPESP, which enabled the hiring of a producer to do the job. There was a restructuring of the script, filming and edits the video. The second stage, there was no statistically significant difference between the ease / difficulty of handling found in the experimental and control groups. The assessment made by the experimental group over how much the Volume 2 DVD helped in understanding the content on their devices, most of the sample reported that this \"very helpful\" in all points evaluated. The lowest rating was \"satisfactory\" to the points raised in the DVD, with no statistically significant difference when compared to former users of hearing aids. Discussion: The teaching material was evaluated, and backed its restructuring in studies aimed at preparing distance learning materials. All the difficulties encountered by the control and experimental groups corroborated the literature. The assessments made by the experimental group showed the high degree of satisfaction with the DVD Volume 2. Conclusions: The DVD \"Knowing and Understanding My Hearing Aid\" Volume 2 was evaluated, proving effective in helping the elderly new users of BTE hearing aids.
Silva, Aline Medeiros da. "Avaliação das perdas auditivas em crianças e adolescentes com HIV/Aids." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/6/6132/tde-08042011-162300/.
Introduction Children and adolescents living with HIV/Aids may suffer from a variety of hearing problems which are more frequent and sometimes more severe when compared to other children. Aim To estimate the prevalence of hearing loss and risk factors in children and adolescents attending at the Childrens Institute (ICr). Methods 106 patients (5 19 years) were analyzed. Patients and caregivers answered several questionnaires about demographic and clinical conditions. Subsequently, the visual inspection of the external auditory meatus was performed in order to verify if there were clinical conditions to perform the audiologic evaluation. The audiologic evaluation was conducted using pure tone audiometry, speech audiometry, tympanometry and tests of acoustic reflexes. The statistical analysis was done using descriptive statistics, Kappa statistics, Students t-test, chi-square test and univariate and multiple logistic regression models. Results The prevalence of hearing loss according to the Bureau Internacional d´Audio Phonologie (BIAP) classification and to the American Speech-Language-Hearing Association (ASHA) classification was 35.8per cent and 59.4per cent, respectively. The agreement in the diagnosis of hearing loss was good between BIAP and ASHA (k= 0.55). The only risk factor for hearing loss for both classifications was the occurrence of suppurative otitis media. For the BIAP classification, the use of lamivudine (3TC) was a risk factor for hearing loss. For the ASHA classification, the occurrence of severe illness, specially encephalopathy, was a risk factor for hearing loss. Conclusions The occurrence of suppurative otitis media, the history of a severe disease, specially encephalopathy, and the use of lamivudine effectively contribute to hearing loss in children and adolescents with HIV/Aids. Auditory monitoring is critical because it allows early detection of hearing loss and identification of its progression. It is highly recommended periodic hearing assessments
Morillon, Benjamin. "Rôle des oscillations corticales dans l'asymétrie fonctionnelle du traitement de la parole." Paris 6, 2011. http://www.theses.fr/2011PA066536.
Gomaa, Mohamed Ismail Ibrahim. "The effect of time pressure, task complexity and litigation risk on auditors' reliance on decision aids." Maastricht : Maastricht : UPM, Universitaire Pers Maastricht ; University Library, Maastricht University [Host], 2005. http://arno.unimaas.nl/show.cgi?fid=6461.
Aushana, Yonane. "Etude des réponses auditives dans le cortex occipital des mammifères aveugle de naissance." Paris 6, 2012. http://www.theses.fr/2012PA066348.
Farias, Rodrigo Brayner de. "Saúde auditiva: estudo do grau de satisfação de usuários de aparelho de amplificação sonora." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/12141.
Objectives: This study aimed at characterizing the hearing aid satisfaction of adult and aged individuals derived from public hearing health care services, investigating its relationship with some variables, such as sex, age, degree of hearing loss, hearing aid type and hearing aid electro acoustic profile and comparing its result with the normative data reported by the questionnaire s authors. Method: 39 individuals were evaluated, 21 males and 18 females, aged from 19 to 90 years. All of them had conductive, sensorineural or mixed, symmetric or asymmetric, mild, moderate or severe hearing loss and used their hearing aids from not less than four weeks and not more than 12 weeks. It was used the Satisfaction with Amplification in Daily Life - SADL questionnaire Results: There was statistically significant association in the relationship between hearing aid satisfaction and hearing aid type, where in the ear hearing aid users were more satisfied than behind the ear hearing aid users. SADL global and subscale scores were higher than those described by the questionnaire s authors. Conclusions: The conclusions point out to the importance of hearing aid satisfaction evaluation to validate the effectiveness of its adaptation, contributing to get better results
Objetivos: Este estudo teve como objetivo caracterizar o grau de satisfação de indivíduos adultos e idosos usuários de aparelhos de amplificação sonora (AAS) atendidos em serviços de saúde auditiva vinculados à Política Nacional de Atenção à Saúde Auditiva, investigando sua relação com as variáveis: sexo, idade, grau da perda auditiva, tipo de AAS e perfil eletroacústico do AAS e comparando os resultados apurados com os dados normativos estabelecidos pelas autoras do questionário. Método: Foram avaliados 39 indivíduos, sendo 21 do sexo masculino e 18 do sexo feminino, na faixa etária entre 18 e 90 anos. Todos eram portadores de perda auditiva pós-lingual adquirida dos tipos condutiva, sensorioneural ou mista, unilateral ou bilateral, simétrica ou assimétrica, de grau leve a severo e faziam uso de seus AAS pelo período mínimo de quatro e máximo de 12 semanas. O questionário utilizado foi o Satisfaction with Amplification in Daily Life SADL. Resultados: Observou-se associação estatisticamente significante quanto ao grau de satisfação relacionado com o tipo de AAS utilizado, sendo maior relativo aos que usavam aparelhos intra-aurais. Os índices apurados foram superiores aos da normatização estabelecida pelas autoras do questionário. Conclusões: As conclusões apontam para a importância da avaliação do grau de satisfação dos usuários de AAS para a validação da efetividade da sua adaptação, contribuindo para a obtenção de melhores resultados
Rezende, Juliana Sanches. "Verificação de características eletroacústicas: estudo comparativo entre softwares de fabricantes de aparelhos de amplificação sonora individual." Pontifícia Universidade Católica de São Paulo, 2009. https://tede2.pucsp.br/handle/handle/12238.
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Introduction: The national hearing health policy in Brazil has made hearing aids available to hearing impaired children and adults and, therefore, the audiologist responsible for dispensing them has to deal with a number of different manufactures for different types and degrees of hearing losses. Goal: To compare the prescribed electroacustic characteristics and modifications suggested for acclimatization among software of different hearing aids manufactures. Method: Six simulated cases of sensorineural hearing losses three adults and three children, including three degrees of loss for each age, were analyzed (P45, P65 e P80). For all cases, a flat configuration was assumed. Three softwares of hearing aids brands were chosen, based on the following criteria: software NOAH 3.0 with the choice for NAL-NL1 and DSL [i/o]v4.1; availability of measurements for output at the 2cc coupler for different intensities of input signal. Procedures: - Verification of output values with the 2cc coupler when compared with the values presented for each brand software, for each hearing loss, using NAL-NL1 for adults and DSL [i/o] v.4.1 for children. Verification of output values prescribed by the original DSL[i/o] v.4.1, as compared with those prescribed by the manufacturer software considering level of acclimatization. Results: A large variation of the amplification provided by the hearing aids for children and adults was found, considering different levels of hearing loss, in most frequencies, for different input levels. This variation was between -3 and -28 dBNPS in high frequencies, comparing the DSL[i/o]v4.1 manufacturer method and the original one. Conclusion: The results of this study have revealed the verification of the electroacoustic characteristics of the hearing aids during the fitting process, ensuring the patient, especially children, a more appropriate amplification
Introdução: A possibilidade de o deficiente auditivo, criança ou adulto, ter acesso a um aparelho de amplificação sonora individual (AASI) concedido por programas de Saúde Auditiva faz com que o fonoaudiólogo responsável pelo processo de seleção e indicação depare com inúmeros modelos de AASIs confeccionados por diferentes fabricantes para os diversos graus de perdas auditivas existentes. Objetivo: O objetivo desta pesquisa foi comparar a prescrição de características eletroacústicas e as modificações propostas para aclimatização feitas por softwares específicos de fabricantes de AASIs. Método: Foram simulados seis casos de perdas auditivas neurossensoriais, três em crianças e três em adultos, com diferentes graus de perda auditiva (P45, P65 e P80) e de configuração plana. Foram escolhidos três softwares de fabricantes de AASI licenciados pelo software NOAH 3.0 que tivessem como opção a escolha dos métodos prescritivos NAL-NL1 e DSL [i/o]v4.1 e a visualização no software da programação de cada fabricante do gráfico de saída, medida em acoplador de 2cc para diferentes intensidades de sons de entrada. Primeiramente, foi feita a verificação das medidas de saída dos AASIs programados no acoplador de 2cc e a comparação com os valores das medidas expressas pelos softwares dos fabricantes para cada perda auditiva prescrita pelo método NAl-NL1 para os adultos e DSL[i/o]v4.1 para crianças. Em seguida, foi feita a comparação das medidas de saída prescritas pelo software original DSL[i/o] 4.1 e as medidas prescritas pelos softwares dos fabricantes, considerando o nível de aclimatização. Resultados: Foi encontrada uma grande variação da amplificação fornecida pelos AASIs para crianças e adultos, considerando todos os graus de perdas auditivas, na maioria das frequências, para diferentes intensidades de sons de entrada. Na comparação entre o método DSL[i/o]v4.1dos fabricantes e o original, essa variação permaneceu entre -3 e -28 dBNPS nas frequências altas. Conclusão: Os resultados deste estudo evidenciaram a necessidade da verificação das características eletroacústicas dos AASIs durante o processo de seleção e indicação dos mesmos, assegurando ao paciente uma amplificação adequada, principalmente no caso de crianças
Azevedo, Milena Manoel de. "INTERFERÊNCIA BINAURAL E ADAPTAÇÃO DE PRÓTESES AUDITIVAS EM PERDAS AUDITIVAS SIMÉTRICAS." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/6568.
Objetivo:Investigar a ocorrência da interferência binaural. Investigar o uso mono ou binaural das próteses auditivas e as queixas de compreensão de fala no silêncio e no ruído. Avaliar o reconhecimento de fala com e sem uso de próteses auditivas mono e binaural e habilidades do processamento auditivo. Correlacionar os resultados obtidos nos diferentes testes. Avaliar o reconhecimento de sentenças no silêncio e no ruído, de indivíduos idosos com perdas auditivas simétricas, usuários de próteses auditivas com adaptação mono e binaural, investigando em qual das duas situações pode ser verificado o melhor desempenho em condições que simulam situações de comunicação do diaadia. Material e método: Foram avaliados 38 sujeitos, sendo 25 homens e 13 mulheres, com idade entre 60 e 89 anos, perda auditiva neurossensorial de grau leve a moderadamente severo, de configuração simétrica, usuários de próteses auditivascom indicação binaural. Foi pesquisado o Índice Percentual de Reconhecimento de Fala (IPRF) em ambas as orelhas (AO) e realizados dois testes: oTeste Dicótico de Dígitos (TDD) atenção dividida e direcionada e o teste Listas de Sentenças em Português (LSP). Pesquisou-se aindaos Limiares de Reconhecimento de Sentenças no Silêncio e no Ruído (LRSS e LRSR) e Índice Percentual de Reconhecimento de Sentenças no Silêncio e no ruído (IPRSS e IPRSR), com adaptação binaural (AO) e monoaural orelha direita (OD) e orelha esquerda (OE). Resultados:Entre os indivíduos avaliados, 31(81,58%) relataram fazer uso binaural das próteses auditivas, 19 (50%) relataram nunca ter dificuldade de compreender a fala no silêncio e 17(44,75%) às vezes. 22 (57,89%) referiram dificuldade para reconhecer a fala no ruído, às vezes e 15 (39,47%) sempre. Os valores médios obtidos para os IPRF foram de 72,95% em AO, 59,26% na OD e 60,53% na OE, respectivamente. As médias obtidas do TDD foram 54,58% em AO, 65,16% na OD e 71,95% OE. Quanto aos dados do IPRSS, foram de 79,63% em AO, 74,79% na OD e 72,40% na OE. A correlação das variáveis IPRF, TDD e IPRSS, o IPRF e o LSP tendem a apresentar resultados semelhantes. Em relação às análises no silêncio e no ruído com adaptação binaural e monoaural, os valores médios obtidos para os IPRSS foram de 80,89% em AO, 76,33% na OD e 71,16% na OE, respectivamente. Já as médias obtidas do IPRSR foram 62,05 % em AO, 60,52% na OD e 60,33%OE. Conclusão:Foi encontrado em um indivíduo indícios da presença de interferência binaural. A grande maioria dos idosos fazia uso binaural das próteses auditivas.Somente um indivíduo não apresentou queixa de compreensão de fala no ruído. O IPRF demonstrou melhor desempenho na condição binaural. O TDD evidenciou pior desempenho na tarefa de integração binaural. Já no LSP não foi encontrada diferença estatisticamente significante entre o desempenho mono e binaural. O teste TDD pode não ser a opção mais adequada para ser utilizado em pacientes idosos com perda auditiva; já o IPRF e o LSP tendem a apresentar resultados semelhantes. O reconhecimento de sentenças dos sujeitos avaliados mostrou melhor desempenho com a adaptação binaural, tanto no silêncio como no ruído. Entretanto, essa diferença não foi estatisticamente significante.
Sellami-Masmoudi, Dorra. "Contribution à l'étude de conception électronique analogique basse tension faible puissance : application aux aides auditives." Bordeaux 1, 1998. http://www.theses.fr/1998BOR10595.
Ménardy, Fabien. "Reconnaissance des signaux de communication chez le diamant mandarin : étude des réponses des neurones d'une aire auditive secondaire." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00764923.
Ménardy, Fabien. "Reconnaissance des signaux de communication chez le diamant mandarin : étude des réponses des neurones d’une aire auditive secondaire." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA11T049/document.
How sensory signals are encoded in the brain and whether their behavioural relevance affects their encoding are central questions in sensory neuroscience. Studies have consistently shown that behavioural relevance can change the neural representation of sounds in the auditory system, but what occurs in the context of natural acoustic communication where significance could be acquired through social interaction remains to be explored. The zebra finch, a highly social songbird species that forms lifelong pair bonds and uses a vocalization, the distance call, to identify its mate offers an opportunity to address this issue. One auditory area in the songbird telencephalon, the caudo-medial nidopallium (NCM) that is considered as being analogous to the secondary mammalian auditory cortex, has recently emerged as part of the neural substrate for sensory representation of species-specific vocalizations: the activation of NCM neurons is greatest when birds are exposed to conspecific song, as compared to heterospecific song or artificial stimuli. This led us to investigate whether, in the zebra finch, NCM neurons could contribute to the discrimination among vocalizations that differ in their degree of familiarity: calls produced by the mate, by familiar individuals (males or females), or by unfamiliar individuals (males or females). In females, behaviourally relevant calls, i.e. the mate’s call and familiar calls, evoked responses of greater magnitude than unfamiliar calls. This distinction between responses was seen both in multiunit recordings from awake freely moving mated females (using a telemetric system) and in single unit recordings from anesthetized mated females. In contrast, control females that had not heard them previously displayed response of similar magnitude to call stimuli. In addition, more cells showed highly selective responses in mated than in control females suggesting that experience-dependent plasticity in call-evoked responses resulted in enhanced discrimination of auditory stimuli. In males, as in females, call playback evoked robust auditory responses. However, neurons in males did not appear capable of categorizing the calls of individuals (males or females) as ‘‘familiar’’ or ‘‘unfamiliar’’. Then, we investigated how calls are represented in the NCM of zebra finches by assessing whether certain call-specific acoustic cues drove NCM neurons to a greater degree than others. Behavioural studies had previously identified call-specific acoustic cues that are necessary to elicit a vocal response from male and female zebra finches. Single-unit recordings indicated that NCM neurons in females were particularly sensitive to call modifications in the spectral domain: suppressing the fundamental frequency of call stimuli or modifying the relative energy levels of harmonics in call caused a marked decrease in response magnitude of NCM neurons. In males, NCM neurons also appear to be sensitive to call modifications in the spectral domain, however changes in magnitude of responses (increase or decrease) depended on the acoustic cue that had been modified.Our results provide evidence that the NCM is a telencephalic auditory region that contributes to the processing of the distance call, in females as well in males. However, how the distance call is processed and represented in the NCM appears to differ between males and females. In females, the NCM could be involved in dicrimination between call stimuli whereas, in males, its functional role in call-processing remains to be determined. Our results also suggest that, in females, social experience with the call of individuals, by affecting the degree to which neurons discriminated between these calls, may shape the functional properties of neurons in a telencephalic auditory area. The functional properties of auditory neurons may therefore change continuously to adapt to the social environment
Verkindt, Chantal. "Étude électrophysiologique de l'organisation tonotopique du cortex auditif chez l'homme." Lyon 1, 1994. http://www.theses.fr/1994LYO1T212.
Assuiti, Luciana Ferreira Cardoso. "Organizando a rede de atenção à saúde auditiva de pessoas que vivem com HIV/AIDS sob a perspectiva da complexidade." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/xmlui/handle/123456789/122853.
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A política nacional de DST/Aids entrou em vigor no ano de 1985, enquanto que a política nacional de atenção à saúde auditiva foi publicada em 2004. Assim, o estudo teve como objetivo construir um referencial teórico, da organização e gestão da rede de atenção à saúde auditiva, a partir da compreensão dos significados atribuídos pelos profissionais e gestores, que atuam na política nacional de atenção à saúde auditiva e política nacional de DST/Aids, no Estado de Santa Catarina. Trata-se de uma pesquisa qualitativa com abordagem teórico-descritiva, a qual foi conduzida pela Teoria Fundamentada nos Dados (TFD). A Complexidade de Edgar Morin foi a perspectiva teórica utilizada, e oportunizou a compreensão do fenômeno de forma contextualizada e reflexiva. Os cenários escolhidos para a realização da pesquisa foram dois Serviços de Atenção à Saúde Auditiva, de alta complexidade, um no Município de Florianópolis/SC, outro em Itajaí/SC, e um Centro de Referência Estadual no controle e tratamento de pessoas com HIV/Aids, localizado em Florianópolis/SC. A coleta de dados ocorreu de maio de 2012 a abril de 2013. A seleção dos participantes foi intencional, por amostragem teórica e apoiada nos seguintes critérios de inclusão: (1) ser profissional ou gestor na política nacional de DST/Aids por no mínimo dois anos; (2) ser profissional ou gestor na política nacional de saúde auditiva por no mínimo dois anos; (3) estar atuando no momento da entrevista. Foram entrevistados trinta profissionais e gestores, divididos em cinco grupos amostrais, sendo dezessete sujeitos que atuavam na Política Nacional de Atenção à Saúde Auditiva, e treze, na Política Nacional de DST/Aids. As entrevistas foram áudio-gravadas e posteriormente transcritas na íntegra. A análise dos dados ocorreu de maneira concomitante com a coleta dos dados, por codificação aberta, axial e seletiva. O fenômeno Organizando a rede de atenção à saúde auditiva de pessoas que vivem com HIV/Aids, fundamentado na integração de nove categorias e dezenove subcategorias, foi distribuído em componentes do modelo paradigmático. A relação entre HIV/Aids e perda auditiva faz parte do Contexto como um tema desconhecido tanto por profissionais e gestores, quanto pelas pessoas que vivem com HIV/Aids, e, apesar de haver literatura científica relatando essa relação, ainda não há um consenso sobre a etiologia da perda auditiva, e seus efeitos para a qualidade de vida nessa população específica. Diante desse quadro os profissionais reconhecem o caráter inovador da pesquisa, e demonstram interesse em aumentar o conhecimento na área, com o objetivo de melhorar a qualidade do cuidado, e organizar uma rede de atenção para pessoas que vivem com HIV/Aids, e que podem ter como agravo a perda auditiva, como consequência dessa condição de saúde. As condições de vida das pessoas que vivem com HIV/Aids emergiu como barreira para o diagnóstico precoce da perda auditiva. Entre as condições estão a baixa renda, a não adesão ao tratamento e as dificuldades em compreender as informações recebidas das equipes de saúde. Dentre as Condições Causas, os profissionais e gestores consideram a gestão do SUS complexa e fragmentada, percebem que o Sistema Único de Saúde apresenta alguns entraves na gestão da rede de atenção à saúde auditiva, e apontam a organização da estrutura do sistema de saúde como um desafio a todos os atores envolvidos, quais sejam gestores, profissionais e usuários. Apontam também a falta de fonoaudiólogos nos Núcleos de Atenção à Saúde da Família, e acreditam que a inclusão desses profissionais contribuiria para a garantia do atendimento integral, acesso universal e igualitário, principalmente nas áreas em que estes têm formação e capacitação para atuar. A melhor qualidade de vida que as pessoas que vivem com HIV/Aids estão vivenciando atualmente, devido ao avanço terapêutico no tratamento do HIV/Aids, emergiu como um dos principais fatores para o aumento da demanda de acompanhamento ambulatorial dessa população, e o agravo auditivo é mais um problema de saúde que precisa ser monitorado. Evidenciou-se que a atual rede de atenção à saúde auditiva de Santa Catarina não tem capacidade estrutural, e de pessoal para assumir esta nova demanda. Foram apontados como Condições Intervenientes a ausência de atendimento na Atenção Básica como porta de entrada na rede de atenção à saúde auditiva, a falta de compromisso dos profissionais, o fluxo da rede como obstáculo para o diagnóstico audiológico básico, a atenção voltada para a especialidade. Como Estratégias sugeridas, os profissionais e gestores enfatizam a inclusão da infecção pelo HIV e da Aids como fatores de risco para surdez, recomendam o monitoramento auditivo, e a criação de protocolos de seguimento e fluxo de atendimento, e por fim a qualificação dos profissionais de saúde que são responsáveis pelo cuidado de saúde dessa população, para o controle do agravo auditivo, ou seja, da surdez permanente e incapacitante. Como Consequências vislumbram-se o cuidado integral, nas três dimensões do entendimento do conceito de integralidade, isto é, a integralidade como forma de cuidar/tratar aquele que procura o atendimento de saúde, aquele que foi em busca do cuidado; a integralidade como processo de trabalho, de ações em equipe, para grupos de atenção específicos e organizados para tal; e a integralidade como dever do Estado em todos os níveis de atenção. Indica-se, como necessidade urgente, a inclusão do fonoaudiólogo nas equipes de saúde da Atenção Básica, inserido e integrado com enfermeiros, dentistas, médicos e o agente comunitário de saúde, a fim de construir uma rede de atenção à saúde auditiva que atenda aos anseios da população, às necessidades das equipes de saúde e cumpra as diretrizes e regulamentações das políticas públicas envolvidas no cuidado às pessoas que vivem com HIV/Aids. Por fim, conclui-se que somente com a integração das políticas públicas será possível construir um sistema de saúde consolidado e eficaz, e que, somente para atender às pessoas que vivem com HIV/Aids, em relação ao agravo auditivo, temos que abarcar a Política Nacional de DST/AIDS, a Política Nacional de Atenção à Saúde Auditiva, a Política Nacional de Atenção Básica, a Política Nacional de Educação Permanente em Saúde, além das Diretrizes das Redes de Atenção à Saúde, ou seja, compreende-se que a organização do cuidado obrigatoriamente se dá e se sustenta em ações compartilhadas, dos vários profissionais que são, ao mesmo tempo, autores e atores de um projeto coletivo.
Camargo, Natália de. "Relações entre medidas de capacidade auditiva e desempenho em tarefas de percepção da fala em crianças com deficiência auditiva." Pontifícia Universidade Católica de São Paulo, 2013. https://tede2.pucsp.br/handle/handle/11954.
Conselho Nacional de Desenvolvimento Científico e Tecnológico
The purpose of the study was to establish the relationship between hearing capacity and performance on tasks of speech perception in children with hearing loss aiming at discussing factors related to effective utilization of residual hearing. Method: The procedures were performed at CeAC/DERDIC/PUCP. The Speech Intelligibility Indices (SII) were established for 55 and 65 dBSPL input sounds of ten children presenting bilateral sensorineural hearing loss, adapted with bilateral hearing aids, and which have oral language as the main mode of communication. They were submitted to a words and nonsense words repetition task either in two or three different intensities (52, 55 and 65 dBSPL). Their productions were analyzed according the criteria established by WASP Protocol and by Confusion Matrix. In the data analysis, the values of SII in the better ear were compared with the results obtained in each analysis criterion. Results: For voicing and word performance, there was a statistically significant difference between both stimuli in 55 dBSPL. For consonants, place of articulation and consonant substitution there was a statistically meaningful difference between stimuli types in 65 and 55 dBSPL and also between intensities 65 and 55 dBSPL in nonsense words. The percentage of correct words was small when compared to the percentage of correct consonants and place of articulation. Thus, the performance in the last criteria seemed more representative of the auditory capacity prescribed by SII 65, which ranged from 27% to 90% with major concentration of intermediary SII subjects. For performance of mode of articulation, there was a statistically significant difference between both words and nonsense words at 55 dBSPL and between 65 and 55 intensities in nonsense words. For performance in other error criteria, the analysis showed no statistically significant difference. Conclusion: With regards to the criterion of correct words, performance was, for most children, below the auditory capacity predicted, considering SII values. As to correct vowel performance, the investigation showed that these have ensured audibility. The criteria of performance in correct consonants and place of articulation seemed more representative of the auditory capacity anticipated by SII than the criterion of correct words performance. The performance regarding criteria of mode of articulation and voicing seem to suggest that these children were able to perceive these traits, probably due to low frequency band information. With regards to errors, the number of substitutions was higher than omissions. The characteristics of substitutions allow us to identify error orientation on certain consonant, while omissions allow for evaluating consonant audibility. Thus, the relationship between auditory capacity and performance on speech task perception cannot be considered in isolation since other factors are involved in this process, thus enabling the explanation of variability in performance. Audiological and therapeutic history, as well as linguistic and family characteristics can significantly interfere with performance given similar auditory capacity. Further studies are necessary to address these issues
O objetivo deste estudo foi estabelecer relações entre capacidade auditiva e desempenho em tarefas de percepção da fala em crianças com deficiência auditiva, visando discutir fatores determinantes na utilização efetiva da audição residual no processo de percepção da fala. Métodos: Os procedimentos foram realizados no CeAC/ Derdic/PUCSP. Foram estabelecidos os Índices de Inteligibilidade de Fala (SII) para sons de entradas de 55 e 65 dBNPS de dez crianças com perda auditiva neurossensorial usuárias de AASI bilateralmente que têm a linguagem oral como a principal modalidade de comunicação. As mesmas foram submetidas à tarefa de repetição de palavras com e sem sentido em duas ou três diferentes intensidades (52, 55 e 65 dBNPS). As emissões das crianças foram analisadas de acordo com os critérios estabelecidos no Protocolo WASP e na Matriz de Confusão. Na análise dos dados, o SII foi comparado com os resultados obtidos em cada critério de análise. Resultados: Para o desempenho em palavras e vozeamento houve diferença estatisticamente significante entre os dois tipos de estímulo em 55 dBNPS. Para o desempenho em consoantes, ponto de articulação e substituição das consoantes houve diferença estatisticamente significante entre os tipos de estímulos em 65 e 55 dBNPS e também entre as intensidades de 65 e 55 dBNPS nas palavras sem sentido. As porcentagens de acerto de palavras foram pequenas quando comparadas às porcentagens de acerto de consoantes e ponto de articulação. Assim sendo, o desempenho nestes dois últimos critérios pareceu melhor representar a capacidade auditiva prevista pelo SII 65, que variou de 27% a 90% com maior concentração de sujeitos com SII intermediários. Para o desempenho em modo de articulação houve diferença estatisticamente significante entre as palavras com e sem sentido na intensidade de 55 dBNPS e entre as intensidades de 65 e 55 dBNPS nas palavras sem sentido. Para o desempenho nos demais critérios de análise dos erros as diferenças não foram estatisticamente significantes. Conclusão: O desempenho no critério acerto de palavras foi para a grande maioria das crianças aquém do potencial auditivo previsto pelo SII. O desempenho no critério acerto de vogais demonstrou que estas têm audibilidade garantida. O desempenho nos critérios acerto de consoantes e de ponto de articulação pareceu melhor representar a capacidade auditiva prevista pelo SII do que o desempenho no critério acerto de palavras. O desempenho nos critérios modo de articulação e vozeamento parecem sugerir que são traços audíveis dada informação na faixa de frequências baixas. As características das substituições possibilitam identificar a orientação do erro em determinada consoante, ao passo que as omissões permitem avaliar a audibilidade da consoante. Assim sendo, a relação entre capacidade auditiva e desempenho em tarefas de percepção da fala não pode ser considerada isoladamente, uma vez que outros fatores estão envolvidos neste processo explicando a variabilidade no desempenho. Particularmente aspectos do histórico audiológico e terapêutico, desenvolvimento de linguagem e características da família podem interferir no desempenho, dada a mesma capacidade auditiva. Outros estudos são necessários
Sposito, Caroline. "Resistência ao uso do sistema FM por adolescentes em um serviço público de saúde auditiva: fato ou mito?" Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/25/25143/tde-10052018-172611/.
Granting the Frequency Modulation system to students with hearing loss represents an advancement in the participation of these students in a learning environment. Resistance to the use of FM system is common among adolescents, who are going through a confusing time in their lives, dealing with conflicting emotions, physiological changes and the need to belong. This study aimed to investigate the use of Frequency Modulation system by adolescents in a public hearing health service. To collect demographic and socioeconomic data and the consistency of FM system usage, medical records of 310 adolescents were analyzed. The descriptive statistic was analyzed using Chi-square test (X²) at a 5% level of significance (p=<0.05). Adolescents of both sexes from all regions of the country were part of the study, 96.45% of them with bilateral hearing loss; 61.83% of them were from upper-lower class; 57.42% from middle school; and 80.28% from public schools. The analysis of the consistency of FM system usage was based on 185 adolescents who returned for follow-up consultation between 2013 and 2016. From that amount, 155 use FM system (83.78%): mostly to go to school (63.26%), but also to watch TV (30.52%) or to listen to music (29.11%). From the 185 adolescents, 133 (61.08%) claimed that they had difficulties in using the FM system. Embarrassment was indicated as the main cause (40.32%), followed by FM system or hearing aid being broken (20.16%), or lack of support from their teachers (17.74%). Also, 30 of the 185 adolescents did not use FM system: 20 returned the device (6.45%), mostly claiming lack of benefit, even though half of them never used the FM system in the classroom (68.75%). The study showed that most adolescents use the Frequency Modulation system consistently; there was a correlation between consistency usage and parents educational level; and it also showed that private school students use FM system with more consistency than public school students. A protocol for selecting, fitting and monitoring the use of the Frequency Modulation system is recommended. The development of clinical strategies and the incentive to make partnerships with Education to promote the consistent use of FM system is indicated. Also, the important role the social workers play needs to be emphasized. As professionals, they guide and guaranty the access to the social rights of these adolescents and provide accessibility to the hearing-impaired students creating conditions of equality for their full intellectual and social development.
Pinna, Mariana Hausen. "Estudo comparativo de reconhecimento de palavras e satisfação auditiva de usuários de aparelho de amplificação sonora implantados com a prótese de orelha média totalmente implantável-Esteem®." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5143/tde-14012013-124452/.
Objective: to compare speech discrimination in silence and in noise with the Esteem® totally implantable hearing device versus hearing aids, and to describe satisfaction with amplification and surgical complications in patients undergoing implantation of the Esteem® device. Study Design: this was an exploratory, prospective, within-group, subject-as-own-control study. Setting: tertiary referral center. Patients: hearing aid users with moderate to severe bilateral sensorineural hearing loss. Interventions: ten patients underwent placement of the Esteem® totally implantable hearing device. The Satisfaction with Amplification in Daily Life (SADL) questionnaire was administered pre- and postoperatively. Main Outcome Measures: speech discrimination in silence and noise, SADL scores, and complications were evaluated. Results: there were no statistically significant differences between hearing aids and the Esteem® device in speech discrimination in silence (p=0.23) or noise (p=0.0438). There was a significant difference between pre and postoperative SADL scores (p=0.0076). Three patients required reintervention, and one ultimately required explantation of the device. Conclusions: Use of the Esteem® device was associated with improved satisfaction with amplification and a trend toward improvement in speech discrimination in silence and noise. Implantation of the device is challenging and should be performed by experienced otologic surgeons.
Morettin, Marina. "Avaliação dos benefícios e satisfação dos usuários de aparelho de amplificação sonora individual nos serviços de audiologia do SUS." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/6/6132/tde-08082008-104826/.
Instituting a National Policy of Hearing Care was necessary to encompass different actions related to the hearing health of hearing impaired individuals - not anymore just supplying Hearing Aids (HAs) - involving a follow-up work of the use of those equipments (benefit and satisfaction evaluation) and, when necessary, speech therapy. Monitoring the results of adaptation to HAs must be performed during all the aural rehabilitation process, ensuring better results and showing that the treatment is effective for users of the Brazilian Unified Health System - SUS. Objective: To describe the benefit obtained and the satisfaction of users of HAs adapted by an institution accredited to SUS. Method: The Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire and the International Outcome Inventory for Hearing Aids (IOI-HA) were used, respectively, to evaluate the HAs benefits and the user satisfaction towards the amplification, together with the routine clinical followup of patients after 4 months of adaptation to the HAs. Results: Fifty three (53) patients returned to complete the evaluation after a 4-month adaptation period, 43 of whom had effectively used HAs. Of these individuals, 38 (88%) had got benefits from the HAs, and most of them was satisfied with the amplification. Of the 47 individuals who did not return for follow-up, 12 were not using the device, mostly due to hearing discomfort. Conclusion: The individuals treated at SUS can be benefited from and be satisfied with the adapted HAs, but the follow-up must be performed to define the patients' needs, ensuring the adhesion to the complete treatment.
Quidicomo, Simone. "Estudo da função auditiva em indivíduos com HIV/AIDS submetidos e não submetidos a terapias antirretrovirais." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5162/tde-22062012-102142/.
Introduction: Acquired Immune Deficiency Syndrome occurs as a result of the presence of the HIV virus in the body affecting the immunological system, potentially making it deteriorate, allowing the manifestation of opportunistic infections. These infections can attack the peripheral hearing system causing hearing damage to the infected individuals. Literature indicates High Frequency Audiometry as an important pointer to the alterations of the peripheral hearing system. Objective: To characterize the audiological manifestations in individuals with HIV/AIDS submitted and not submitted to antiretroviral therapy. Method: The audiological evaluation was carried out in 28 individuals of GPI with HIV/AIDS submitted to antiretroviral therapy; 24 individuals of GPII with HIV/AIDS not submitted to the antiretroviral therapy and 45 healthy individuals of GC. The audiological tests that make up this survey were: Conventional Tonal Audiometry, Speech Audiometry, High Frequency Audiometry and Acoustic Immitance Measures. Result: In the measurement of Acoustic Immitance, there was no statistically significant difference in the results obtained amongst the groups, for Tympanometry Test and for Acoustic Reflexes. It was also observed that for the three groups, the percentage of normal results for Tympanometry Test was higher, whilst for Acoustic Reflexes the higher percentage was of altered results.The groups GPI and GPII, formed by individuals with HIV/AIDS, presented alterations in the conventional audiological evaluation as well as in the high frequency one. With regards to the Conventional Tonal Audiometry, in the comparison amongst the groups, it showed higher audiometrics thresholds in frequencies of 250 Hz, 1000 Hz, 2000 Hz, 4000 Hz, 6000 Hz and 8000 Hz for individuals with HIV/AIDS. Regarding High Frequency Audiometry, the results also showed higher audiometrics thresholds in individuals with HIV/AIDS in frequencies of 10 KHz, 11,2 KHz, 12,5 KHz, 14KHz, 18 kHz and 20 KHz. Conclusion: There was no difference in the Measurements of Acoustic Immitance observed amongst the three groups Individuals with HIV/AIDS present more alterations in Conventional Tonal Audiometry and in High Frequency Audiometry when compared to healthy individuals which indicates a compromise on the peripheral hearing system. There was no significant difference between individuals with HIV/AIDS submitted and not submitted to antiretroviral therapy
Vieira, Eliara Pinto [UNIFESP]. "Mutações genéticas da deficiência auditiva: avaliação comportamental e eletrofisiológica da audição sem e com prótese auditiva em crianças." Universidade Federal de São Paulo (UNIFESP), 2011. http://repositorio.unifesp.br/handle/11600/9832.
As BMPs, proteínas indutoras de crescimento ósseo, desde o início de sua utilização têm sido avaliadas em diferentes modelos experimentais objetivando determinar sua eficácia. Sabemos que algumas substâncias podem interferir positiva ou negativamente quando utilizadas de forma sistêmica ou local, associadas à BMP. Objetivo: Este estudo tem por objetivo avaliar as possíveis interferências da utilização de antibioticoterapia profilática pré e pós-operatória, utilizando-se como princípio ativo a cefazolina, aplicada a um modelo experimental em coelhos. Métodos: Foram utilizados dois grupos de coelhos fêmea, neozelandeses, submetidos à artrodese intertransversa da coluna lombar, segmento L5-L6, por via posterior. No primeiro grupo foi utilizado o enxerto autólogo associado ao biocomposto (BMP bovino, 1,0mg e hidroxiapatita, 9,0mg). No segundo grupo foi realizado o mesmo procedimento e utilizado o mesmo biocomposto, porém os animais foram submetidos a antibioticoterapia profilática com cefazolina iniciada duas horas antes e mantida por 24 horas após o término do procedimento. Os animais foram acompanhados por 15 semanas, isolados em cativeiro e avaliados diariamente por veterinário sob o ponto de vista clínico e neurológico, sendo posteriormente sacrificados e retiradas as peças cirúrgicas para serem submetidas à análise radiográfica e histológica. Resultados: Para o grupo 1, a quantidade e localização do material implantado variaram entre os indivíduos, porém, na maioria dos casos (6 amostras), a quantidade de partículas de osso homólogo era insignificante e estava dispersa ao longo do tecido mole que recobre o dorso da vértebra, circundado por tecido reacional com área de necrose. Nos demais casos as partículas com reabsorção preenchiam o reduzido espaço entre os processos transversos. Para o grupo 2, a quantidade do material e sua localização também variaram entre os indivíduos. Na maioria dos casos inúmeras partículas de osso mole preenchiam o espaço entre os processos laterais cuja neoformação óssea levou ao aprisionamento de algumas dessas partículas. Todos os casos exibiram formação em maior ou menor intensidade de tecido cartilaginoso na superfície dos processos transversos. A análise radiográfica mostrou em sua freqüência relativa maior freqüência de fusão completa para o grupo 2 quando comparado ao grupo 1. Conclusão: Do ponto de vista histológico para o modelo e período experimental analisado, inferimos que, embora nenhum dos tratamentos propostos tenha promovido o completo fusionamento das vértebras por tecido ósseo, a utilização de osso homólogo + BMP bovina, associada à aplicação de cefazolina, promoveu maior formação cartilaginosa e óssea com menor índice de rejeição do material enxertado na área doadora, quando comparada ao grupo sem associação de cefazolina. Do ponto de vista radiográfico, a análise relativa também demonstrou-se superior para o grupo onde foi utilizado cefazolina.
The BMPs, the inductive proteins of bone growth since the beginning of their use have been evaluated in different experimental models aiming to determine their efficacy. We know that some substances can interfere positively or negatively when used in a systemic way or places associated with the BMP. Objective: this study objective to evaluate the possible interferences of antibiotic-therapy by using the active principle of cefazolin in an experimental model with rabbits. Methods: Two groups of female New Zealand rabbits underwent a lumbar spine inter-transverse artrodesys of segment L5-L6 using posterior approach. An homolog bone graft associated with a bio-compound (bovine BMP, 1,0mg and hydroxiapatita, 9,0mg) was used in the first group. The same procedure and bio-compound were used in the second group. However the animals were submitted to a prophylactic antibiotic-therapy with cefazolin starting two hours before the procedure and maintained for 24 hours after surgery. The animals were analyzed for 15 weeks, isolated in captivity and daily evaluated by a veterinarian under the clinical and neurological views and then euthanized, being the surgical pieces removed and submitted to a radiological and histological analysis. Results: For the first group the quantity and location of the implanted material varied among the individuals. However in most of the cases, the quantity and particles of homolog bone was insignificant and disperse along the soft tissue that covers the posterior region of the vertebrae. In the other cases, the particles with reabsorvation filled the reduced space between the transversal processes. For the second group, the quantity of material and its location also varied among the individuals. In most of the cases, several particles of homolog bone filled the space between the lateral processes whose bone neo-formation led to a trapping of these particles. All the cases showed formation in a higher or lower intensity of the cartilaginous tissue in the surface of the transverse processes. The radiological analysis showed in its relative frequency a higher frequency of complete fusion for group 2 when compared to group 1. Conclusion: Under the histological view for the model and experimental period analyzed, we inferred that, despite the fact that none of the proposed treatments had promoted a complete fusion of the vertebraes per bone tissue, the use of homolog bone + bovine BMPs associated with the use of cefazolin promoted a higher cartilaginous and bone formation with lower incidence of rejection of the material grafted in the doer area when compared to the group without the association of cefazolin. Under the radiological view, the relative analysis also showed to be superior in the group where cefazolin was used as a prophylactic antibiotic.
TEDE
BV UNIFESP: Teses e dissertações
Pinthuprapa, Chatchai. "The development and adaptation of the computer aided environment to facilitate industrial energy audits." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5093.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 7, 2008) Includes bibliographical references.
Rocha, Sávya Cybelle Milhomem. "Uso de prótese auditiva no controle do zumbido e alucinação musical." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5143/tde-19122012-103106/.
Introduction: Although auditory hallucinations are considered psychopathological phenomena, musical hallucinations have been reported in individuals without history of psychosis but with otologic symptoms. As is the case for tinnitus, hearing loss is thought to be the main predisposing factor for the emergence of musical hallucinations. To date, musical hallucinations have remained refractory to the treatment approaches typically recommended in the literature. Objectives: 1. Primary: to assess the effect of one year of hearing aid use in patients with both tinnitus and musical hallucinations associated with hearing loss; 2. Secondary: a. to investigate the coexistence of otologic, neurologic and psychiatric diseases; b. to verify the association between improvement of tinnitus and musical hallucinations using hearing aid. Methods: given the rareness of the phenomenon, a nonrandomized clinical trial was conducted including the first 14 consecutive adult patients of both genders with tinnitus and musical hallucinations enrolled at the Tinnitus Research Group of the Clinicas Hospital of the University of São Paulo School of Medicine. All patients were assessed by the same multidisciplinary team of ENT specialists, neurologists and psychiatrists. All patients met audiologic criteria for use of a hearing aid and had shown no improvement in symptoms after treatment with medications. The experimental group comprised 9 participants who were given counseling on their three auditory symptoms and fitted with hearing aids. The control group comprised 5 subjects given the same counseling but who declined to have hearing aids fitted. Tinnitus was assessed at baseline and again at 1- year follow-up using the Tinnitus Handicap Inventory whereas musical hallucinations were assessed by a numeric scale. Results: The two groups proved suitably matched for deafness, with 80% of the both groups presenting with severe to profound hearing loss. The cognitive assessment revealed mild attention deficit in 33.3% (experimental group) and 20%(control group). Epileptiform activity was detected in 11.1% (experimental group) and 20% (control group). The psychiatric assessment revealed depressive episodes in 66.6% (experimental group) and 80% (control group). Generalized anxiety was found in 11.1% (experimental group) and 0% (control group) and absence of psychiatric diagnoses in 22% (experimental group) and 20% (control group). Patients from both groups showed improved tinnitus handicap grades at 1-year follow-up, although experimental group subjects had a significantly greater improvement than control group subjects. Only individuals from the experimental group improved on musical hallucination handicap. No correlation was found between improvement in tinnitus and improvement in musical hallucinations. Conclusion: In the sample studied, musical hallucination was found in females and elderly adults and was associated with mood disorders. Patients presenting with musical hallucinations should be submitted to a multidisciplinary assessment (otologic, psychiatric and neurologic) to refine the diagnosis. Sound amplification using a hearing aid, combined with specific counseling on tinnitus, musical hallucinations and hearing loss, proved more effective for controlling tinnitus and musical hallucinations after one year than specific counseling alone
Lourençone, Luiz Fernando Manzoni. "Prótese auditiva ativa cirurgicamente implantável de orelha média para reabilitação auditiva em pacientes com atresia aural congênita bilateral: técnica cirúrgica e resultado audiológica." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/5/5143/tde-01112018-112945/.
Introduction: Congenital aural atresia refers to a spectrum of ear deformities present at birth that involve some degree of failure in the development of the external auditory canal, and often the tympanic membrane and middle ear ossicles as well. One of the consequences of congenital aural atresia is conductive hearing loss that must be treated early to avoid complications. The use of Vibrant soundbridge(TM) for treating hearing loss has improved the hearing of these patients in practices worldwide. Objective: To systematize and describe the surgical technique for implanting the Vibrant soundbridge(TM) in patients with bilateral congenital aural atresia and to describe the results of postoperative audiological evaluations. Method: Twelve patients with bilateral congenital aural atresia underwent Vibrant soundbridge(TM) implantation surgery and audiological evaluations at two instances: before and 6 months after surgery. The evaluations included threshold tonal audiometry, free field audiometry, auditory word recognition in silence (list of monosyllables), sentence recognition threshold, and signal to noise ratio (HINT - Brazil). Data were analyzed through descriptive and inferential statistical methods. Results: The surgical protocol used for implantation of the Vibrant soundbridge(TM) device in patients with bilateral congenital aural atresia was described. There were no intraoperative or postoperative complications. The free-field auditory thresholds improved from 53.5 dB to 27.2 dB after 6 months of Vibrant soundbridge(TM) use (p < 0.001). The auditory recognition of monosyllable words improved significantly after surgery (from 61.0% to 91.3%). In HINT, we also found a statistically significant improvement (p < 0.001) in the sentence recommencement threshold from 67.1 dB to 45.9 dB and the mean S/R ratio improved from 5.6 dB to 1.4 dB (p = 0.009). Conclusions: Systematization of the Vibrant soundbridge(TM) surgical technique in patients with bilateral congenital aural atresia allowed safe surgery without postoperative complications and resulted in positive audiological results in the test population