Bibliografías temáticas / Normal hearing function

Literatura académica sobre el tema "Normal hearing function"

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Publicado: 11 de marzo de 2023

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Artículos de revistas sobre el tema "Normal hearing function"

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Barbosa, Maria Helena Magalhães, Cristiane Fregonesi Dutra Garcia, Maria Clara de Magalhães Barbosa, Jaqueline Rodrigues Robaina, Arnaldo Prata-Barbosa, Marco Antonio de Melo Tavares de Lima y Antonio José Ledo Alves da Cunha. "Normal Hearing Function in Children Prenatally Exposed to Zika Virus". International Archives of Otorhinolaryngology 24, n.º 03 (13 de diciembre de 2019): e299-e307. http://dx.doi.org/10.1055/s-0039-3399539.

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Abstract Introduction The association between prenatal Zika virus infection and hearing alterations in offspring has been the object of some studies, although few have assessed children without microcephaly. However, a current trend to include prenatal Zika virus exposure in the group of risk indicators for hearing loss is noted. Objective To present a series of 27 children prenatally exposed to the Zika virus submitted to multiple hearing assessments over time. Methods A cohort of children born to symptomatic mothers with laboratorial Zika virus infection confirmation during pregnancy was submitted to an otoacoustic emission test, auditory brainstem response test (automated, neurodiagnostic and frequency-specific), audiometry, and imitanciometry over a period of 36 months since birth. The hearing assessment was performed independently of the presence of microcephaly or other apparent signs of congenital Zika syndrome. Results The hearing tests presented predominantly normal results. Some children had signs of middle ear pathology. The only microcephalic child had normal electrophysiological tests, as well as preserved audiometric thresholds, but presented altered motor responses to sound. Conclusion Prenatal exposure to Zika virus does not always determine hearing impairment. This risk seems to be more associated to the severity of the central nervous system damage. Hearing screening and follow-ups of the affected children are important, as well as further research in this area.
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Vuckovic, Dragana, Sally Dawson, Deborah I. Scheffer, Taina Rantanen, Anna Morgan, Mariateresa Di Stazio, Diego Vozzi et al. "Genome-wide association analysis on normal hearing function identifiesPCDH20andSLC28A3as candidates for hearing function and loss". Human Molecular Genetics 24, n.º 19 (17 de julio de 2015): 5655–64. http://dx.doi.org/10.1093/hmg/ddv279.

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Serpanos, Yula Cherpelis y Judith S. Gravel. "Assessing Growth of Loudness in Children by Cross-Modality Matching". Journal of the American Academy of Audiology 11, n.º 04 (abril de 2000): 190–202. http://dx.doi.org/10.1055/s-0042-1748045.

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AbstractThis study examined the clinical feasibility, validity, and reliability of loudness growth assessment using cross-modality matching (CMM) between line length and loudness in 16 children 4 to 12 years old with normal hearing or bilateral sensorineural hearing losses ranging from moderate to severe in degree. Eight adult listeners with normal hearing were used as a comparison group. Loudness growth functions and real-ear measures were obtained for 500–Hz and 2000-Hz narrowband noise stimuli for each individual. No significant differences were found between the loudness slope values for the adults and children with normal hearing. Loudness growth functions of the children with sensorineural hearing loss were significantly steeper (larger) than the slopes obtained from children with normal hearing. The numeric slope value of the loudness growth function became larger and more variable as children's hearing threshold increased and differed for children with similar thresholds. The loudness functions obtained for retested participants at two different test sessions were highly correlated. Real-ear measurements revealed that for equivalent input stimulus levels, significantly higher stimulus levels were present in the ear canals of children versus adults. Although adults and children with normal hearing had similar overall rates of loudness growth, discrete points along the loudness growth function were judged to be louder by the children. This preliminary study suggests that measures of loudness growth using CMM between line length and loudness are feasible, valid, and reliable in children with normal hearing or sensorineural hearing loss. The individual variability noted in slope values for children with hearing loss attests to the importance of subjective assessments of loudness. The protocol used in this study may have potential as a clinical tool for selecting and fitting amplification technology for children with hearing loss as young as 6 years. Abbreviations: CMM = cross-modality matching, HI = hearing impairment, LDL = loudness discomfort level, MCL = most comfortable loudness, NBN = narrowband noise, NH = normal hearing
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Florence, J., P. Hari Prakash, P. G. Bhargavi, Y. Krishna y Rajashekhar Bellur. "Comparison of Loudness Growth Function in Normal Hearing Individuals and Impaired Aided Hearing". Advanced Science Letters 23, n.º 3 (1 de marzo de 2017): 1946–48. http://dx.doi.org/10.1166/asl.2017.8497.

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Stamper, Greta C. y Tiffany A. Johnson. "Auditory Function in Normal-Hearing, Noise-Exposed Human Ears". Ear and Hearing 36, n.º 2 (2015): 172–84. http://dx.doi.org/10.1097/aud.0000000000000107.

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Nelson, Peggy B. y Susan Dwyer Thomas. "Gap Detection as a Function of Stimulus Loudness for Listeners With and Without Hearing Loss". Journal of Speech, Language, and Hearing Research 40, n.º 6 (diciembre de 1997): 1387–94. http://dx.doi.org/10.1044/jslhr.4006.1387.

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Temporal resolution, or the ability to process rapidly changing stimuli, has been purported to be reduced in some listeners with hearing loss while being described as normal in others. Ensuring stimulus audibility by increasing stimulus levels results in near-normal temporal resolution abilities for many listeners with hearing loss, but may also result in uncomfortably loud stimulus levels. The current study was conducted to describe temporal resolution abilities of listeners with and without hearing loss as a function of stimulus loudness. The gap detection abilities of 8 listeners with normal hearing were compared with those of 8 listeners with mild to moderate hearing losses over a wide range of intensities using a 650-Hz wide high-frequency noise marker. At low intensities, listeners with hearing loss show poor gap detection ability. As intensity increases, most listeners’ performance improves and stabilizes near normal at high loudness and sensation levels. At comfortable loudness, gap detection abilities of listeners with hearing loss are less than at loud levels and are considerably poorer than normal.
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Pupo, Daniel, Brent Small, Jennifer Deal, Nicole Armstrong, Susan Resnick, Frank Lin, Luigi Ferrucci y Qu Tian. "Cognition Moderates the Relationship Between Hearing and Mobility in Cognitively Normal Older Adults". Innovation in Aging 5, Supplement_1 (1 de diciembre de 2021): 161. http://dx.doi.org/10.1093/geroni/igab046.618.

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Abstract Recent data has shown a consistent but modest association between hearing impairment and poor mobility; both are strongly associated with cognition. Cognitive function may moderate the relationship between hearing and mobility. We analyzed 601 cognitively normal older participants from the Baltimore Longitudinal Study of Aging who had concurrent data on cognition (attention, executive function, sensorimotor function), hearing (pure-tone average, PTA), and mobility (6-meter gait speed, 400-meter time). We performed multivariable-adjusted linear regression to test two-way interactions between each cognitive measure and PTA. There were significant PTA interactions with all cognitive measures on 400-meter time. There was a significant interaction between PTA and sensorimotor function on 6-meter gait speed. Among cognitively normal older adults, poorer hearing is more strongly associated with poor mobility in those with low cognition, especially sensorimotor function. Future studies are needed to understand how cognition may moderate the relationship of hearing impairment with mobility decline over time.
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Serpanos, Yula Cherpelis. "ABR and DPOAE Indices of Normal Loudness in Children and Adults". Journal of the American Academy of Audiology 15, n.º 08 (septiembre de 2004): 555–65. http://dx.doi.org/10.3766/jaaa.15.8.3.

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Loudness growth prediction using normal templates of loudness derived with ABR and DPOAE measures was investigated in 20 children 4 to 12 years and 20 adults with normal hearing. An ABR click latency-intensity function (LIF), ABR 2 kHz tone LIF, and DPOAE 2 kHz amplitude-intensity function (AIF) were recorded from each listener. A loudness-intensity function was also measured for each electrophysiologic stimulus. Children and adults exhibited similar intensity functions of ABR latency, DPOAE amplitude, and loudness. A statistically significant relationship was found between loudness and ABR latency and DPOAE amplitude. Loudness estimation equations derived with ABR latency and DPOAE amplitude accurately and reliably predicted the loudness-intensity functions of the listeners. Normative ABR and DPOAE templates of predicted loudness growth may have clinical application in site-of-lesion assessment or hearing aid fitting by distinguishing abnormal rates of loudness growth for individuals who cannot provide reliable behavioral measures.
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Stelmachowicz, Patricia G., Brenda M. Hoover, Dawna E. Lewis, Reinier W. L. Kortekaas y Andrea L. Pittman. "The Relation Between Stimulus Context, Speech Audibility, and Perception for Normal-Hearing and Hearing-Impaired Children". Journal of Speech, Language, and Hearing Research 43, n.º 4 (agosto de 2000): 902–14. http://dx.doi.org/10.1044/jslhr.4304.902.

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In this study, the influence of stimulus context and audibility on sentence recognition was assessed in 60 normal-hearing children, 23 hearing-impaired children, and 20 normal-hearing adults. Performance-intensity (PI) functions were obtained for 60 semantically correct and 60 semantically anomalous sentences. For each participant, an audibility index (AI) was calculated at each presentation level, and a logistic function was fitted to rau-transformed percent-correct values to estimate the SPL and AI required to achieve 70% performance. For both types of sentences, there was a systematic age-related shift in the PI functions, suggesting that young children require a higher AI to achieve performance equivalent to that of adults. Improvement in performance with the addition of semantic context was statistically significant only for the normal-hearing 5-year-olds and adults. Data from the hearing-impaired children showed age-related trends that were similar to those of the normal-hearing children, with the majority of individual data falling within the 5th and 95th percentile of normal. The implications of these findings in terms of hearing-aid fitting strategies for young children are discussed.
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Neagu, Alexandra-Cristina y Monica Gheorghiu. "Thyroid function in hearing impaired children with cochlear implant". Romanian Medical Journal 62, n.º 3 (30 de septiembre de 2015): 276–79. http://dx.doi.org/10.37897/rmj.2015.3.12.

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Congenital hypothyroidism may be associated with hearing loss. However, the prevalence of thyroid abnormalities in children with severe hearing loss is not clearly evaluated. The authors assessed the thyroid function in 30 children with profound sensorineural bilateral hearing loss, with cochlear implant, to determine if there is any association between congenital hearing loss and hypothyroidism. Serum levels of TSH and free thyroxine were normal in the study group. None had Pendred syndrome. We present a literature review on the association between hearing loss and thyroid abnormalities and the importance of testing hearing in children with congenital hypothyroidism.
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Tesis sobre el tema "Normal hearing function"

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Low, Robert Donald George. "Simultaneous recording of middle and inner ear function in normal hearing adults". Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394999.

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Nicol, Kathleen McIntyre McWatt. "Correlated behavioural and anatomical studies of auditory function in normal and hearing impaired guinea pigs". Thesis, Keele University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305871.

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Acker, Leah C. (Leah Christine). "A distortion product otoacoustic emissions (DPOAE) assessment of cochlear function in tinnitus subjects with normal hearing sensitivity". Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53201.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 48-50).
Tinnitus, the perception of sound in the absence of an external acoustic source, disrupts the daily life of 1 out of every 200 adults, yet its physiological basis remains largely a mystery. While tinnitus and hearing loss (i.e., elevated pure tone thresholds) commonly co-occur, many people without hearing loss experience tinnitus, raising the question of whether cochlear pathology is always a prerequisite for this percept. This study used distortion product otoacoustic emissions (DPOAEs) to evaluate the cochlear amplifier of 13 tinnitus subjects and 13 non-tinnitus subjects (matched by age, sex, and audiogram) across a broad range of frequencies and intensities. DPOAE magnitudes were measured for at least 52 frequencies (500 Hz by Leah C. Acker.
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Brown, Megan Suzanne. "Vocal Function Exercises for Normal Voice: With and Without Semi-Occlusion". UKnowledge, 2017. http://uknowledge.uky.edu/commdisorders_etds/11.

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The primary purpose of this investigation was to explore the effects of varying degrees of vocal tract semi-occlusion in Vocal Function Exercises (VFEs) on attainment of pre- established maximum phonation time (MPT) goals in individuals between the ages of 18 and 45 with normal voice. Individuals were randomized into three experimental groups: the traditional VFE with a semi-occluded vocal tract (SOVT), modified /o/ with partial occlusion, and modified /a/ without significant occlusion. For six weeks, the participants completed the four exercises two times each, twice daily on corresponding vocal tract postures assigned by group. Results indicated significant change in percent of MPT goal attained for the traditional VFE group. Neither modified vocal tract group resulted in significant change. Decreased occlusion appears insufficient in producing substantial change in voice production despite increased compliance compared to the traditional VFE group.
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Parrish, Linda Titera. "The Effect of Age, Noise Level, and Frequency on Loudness Matching Functions of Normal Hearing Listeners with Noise Masking". BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5793.

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Loudness recruitment is an abnormally rapid growth of perceived loudness above the hearing threshold that slows to normal growth as the intensity of the signal increases. Recruitment is common in sensorineural hearing loss and in simulated hearing loss with noise masking. This study looked at possible differences in loudness recruitment with age, noise level, and frequency. Participants from two age groups were tested. Group A included participants aged 18 to 30 years and Group B included participants aged 50 to 75 years. Participants practiced the Alternate Binaural Loudness Balance (ABLB) test without noise present. They then repeated the tests with masking noise. Tests were completed with two different noise levels (50 dB SPL and 70 dB SPL), and two different test tone frequencies (1000 Hz and 2000 Hz). Participants identified loudness matching points to reference intensities of 20, 40, 60, and 80 dB HL. Participants completed 3 trials at each intensity level. Difference scores of the intensity of the loudness matching point minus the intensity of the reference tone were computed and analyzed statistically. An analysis of variance (ANOVA) for repeated measures fails to show significance for between-subjects effect for age, within subject effect for frequency, and trial. An ANOVA for repeated measures shows significant within subject effect for noise and for intensity. The 70 dB SPL noise level shows greater difference scores and a steeper loudness matching function slope than the 50 dB SPL noise level. The greater difference scores and steeper slope are expected due to the higher hearing threshold created with the higher noise level. As the intensity level increases, the difference score decreases. The decrease in difference scores with increasing intensity levels shows the presence of loudness recruitment. The results of this study suggest the use of masking noise in order to measure recruitment is an acceptable simulation. Age alone does not account for changes in loudness recruitment. Therefore, recruitment measurement with noise masking may be a potential marker of early auditory dysfunction.
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Smurzynski, Jacek. "Influence of Monaural Overstimulation in Cochlear Function in Normal- hearing Adults Measured Psychoacoustically and with Spontaneous and Distortion Product Otoacoustic Emissions". Digital Commons @ East Tennessee State University, 2008. https://dc.etsu.edu/etsu-works/2198.

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Smart, Jane. "Psychometric functions of clear and conversational speech for young normal hearing listeners in noise". [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002137.

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Wong, Man Sze. "The Presence of Binaural Interaction Component (BIC) in the Auditory Brainstem Response (ABR) of Normal Hearing Adults". Scholar Commons, 2002. https://scholarcommons.usf.edu/etd/1533.

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The purpose of this study was to determine the prevalence of the binaural interaction component (BIC) in a large sample of normal hearing adults, and to measure the absolute latency and amplitude of the BIC as a function of the click rate of the stimulus and the electrode montage. The BIC is obtained by subtracting the auditory evoked potential waveform obtained with binaural stimulation from the waveform obtained by adding the responses from the left and right monaural stimulation. The tested hypothesis was that the recordings of the BIC vary among normal hearing individuals, and BIC latency and amplitude values change as a function of stimulus rate. Studies of the BIC help to explain the neural correlates of some binaural processes, and to develop an electrophysiological index of binaural processes for objective clinical evaluations. Data was completed and analyzed on 47 adults between the ages of 20 and 41 (mean = 25) with hearing in the normal range (thresholds less than or equal to 20 dB HL at 500, 1000, 2000, and 4000 Hz in each ear) and no known neurological disorders. The results revealed a great variability in BIC morphology between subjects. The BIC waveforms were categorized into five distinct groups according to the number of positive and negative peaks present. Chi-square analyses revealed a significant relationship between click rate and BIC category; however, the relationship between recording montage and BIC category was insignificant. An Analysis of Variance (ANOVAs) revealed a significant increase in absolute latency and decrease in absolute amplitude of both negative and positive peaks as click rate increased from 7.7/s to 57.7/s. The results did not reveal a significant change in the type of BIC as an effect of electrode montage. In conclusion, the BIC within the binaural difference waveform may be obtained in the majority of young individuals with normal hearing. Specifically, a slower stimulus rate revealed more components of the waveform, as well as an improvement in the morphology of the BIC compared to a faster stimulus rate. As these findings may aid in the development of an electrophysiological index of binaural neural processes in young individuals with normal hearing, more research should be attempted in the study of BIC in other age groups and patients with different audiograms.
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Harvey, David. "Structural and functional development of the cochlea in normal (CBA/Ca) and hearing impaired shaker-1 (sh-1/sh-1) mice". Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329832.

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Willihnganz, Melodie Sue. "Spectral weighting functions in young normal-hearing children". 1994. http://catalog.hathitrust.org/api/volumes/oclc/33019256.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1994.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 23-28).
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Libros sobre el tema "Normal hearing function"

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Robinson, D. W. Tables for the estimation of hearing impairement due to noise for otologically normal persons and for a typical unscreened population, as a function of age and duration of exposure. [Bootle]: Health and Safety Executive, 1988.

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Luxon, Linda. Disorders of hearing. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198569381.003.0301.

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Hearing loss is the commonest sensory disability worldwide, and the World Health Organisation has estimated that 278 million people suffer a moderate to profound hearing loss in both ears, with 80 per cent of deaf and hearing-impaired people living in low- and middle-income countries (WHO 2006). Tinnitus affects approximately 10 per cent of developed populations (Coles 1984) and of these, 5 per cent find the symptom troublesome and seek help (Davis 1995). Tinnitus and hearing loss are primary symptoms of disordered cochlear function, but may also present as a result of central auditory pathology with normal cochlear function. Pathology affecting the central auditory pathways characteristically presents as difficulty hearing in conditions of poor signal-to-noise ratio, for example, in a classroom in the presence of background noise, listening to transmitted sound, for example on the telephone or on a television, and sound localization. As a consequence of multiple relays and bilateral representation above the level of the cochlear nuclei, central auditory dysfunction does not present with hearing loss. Hearing loss and/or tinnitus, with or without associated vestibular abnormalities, will most commonly be the result of otological pathology. However, importantly for the neurologist cochlear, VIII nerve, or central auditory dysfunction may be part of the clinical presentation of a neurological disorder.
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Robinson, D. W. Tables for the Estimation of Hearing Impairment Due to Noise for Otologically Normal Persons and for a Typical Unscreened Population, as a Function of ... of Exposure. Health and Safety Executive (HSE), 1988.

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Bueno-Hansen, Pascha. Waiting in the Garden of Broken Trees. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039423.003.0001.

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This book examines how social inequality functions within Peru's transitional justice process by focusing on the gender-based violence that occurred during the internal armed conflict of 1980–2000. It considers how Peruvian human rights and feminist movements, the Peruvian Truth and Reconciliation Committee (PTRC), and a feminist nongovernmental organization—the Estudio por la Defensa de los Derechos de la Mujer, or Study and Defense of Women's Rights (DEMUS)—negotiated between implementing international human rights law and holistically addressing gender-based violence. It also explores how gender norms influence what violations the Peruvian human rights movement, and later the PTRC, prioritize; how gender norms influence dominant representations of women in the PTRC public hearings and sexual violence legal cases; and how the temporally bound nature of transitional justice exists in tension with the continuum of violence. Finally, the book discusses the influence of other social factors, such as ethnicity, language, class, and culture, on gender-based violence during the internal armed conflict.
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Capítulos de libros sobre el tema "Normal hearing function"

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Bortolozzi, Mario. "Defects in the Atp2b2 Gene Causing Hereditary Hearing and Balance Loss in Mice and Humans: A Biophysical Study of Normal and Mutated PMCA2 Pump Function". En Biophotonics: Spectroscopy, Imaging, Sensing, and Manipulation, 371. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9977-8_23.

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Sheikh, Alishbah, Bint-e-Zainab, Kanwal Shabbir y Ayesha Imtiaz. "Structure and Physiology of Human Ear Involved in Hearing". En Human Auditory System - Function and Disorders [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105466.

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Hearing is the fundamental sense based on the normal functioning of the hearing organ “the ear,” which plays a vital role in social interaction and the ability of learning. The human ear is divided into three parts: the outer, middle, and inner ear. Defects in outer and middle ear can cause conductive hearing loss, while the defective inner ear may lead to sensorineural hearing loss. So, it is important to study the structure and physiology of the human ear. When a sound of particular frequency enters the outer ear, it passes through the auditory canal and strikes the tympanic membrane. It vibrates and passes these vibrations to three ossicles present in the middle ear. The ossicles amplify the vibrations of sound and send them to the cochlea in the inner ear. Cochlea contains organ of Corti, which converts these vibrations into electrical signals by its hair cells. The neural signals in turn are interpreted by the brain, which one can hear and understand. The aim of this chapter is to review the basic structure and physiology of different parts of the human ear that are involved in the hearing process.
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Hellman, William S. "On the Role and Structure of the Decision Variable Variance Function in Modeling Intensity Discrimination in Normal Hearing and Simulated Hearing Loss". En Modeling Sensorineural Hearing Loss, 223–33. Routledge, 2019. http://dx.doi.org/10.4324/9781315789392-18.

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Bautista Calero del Castillo, Juan, Alberto Guillén Martínez y Francisco García Purriños. "Precocious Auditory Evoked Potential Recording with Free-Field Stimulus". En Human Auditory System - Function and Disorders [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102569.

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The aim of this study is to determine the thresholds of normality in the recording of precocious auditory evoked potentials with free-field stimulation and to compare them with conventional stimulation with insertion headphones. For this purpose, we have carried out a case series study of children with normal hearing stimulated with insertion headphones, who underwent Auditory Brainstem Response (ABR) and Auditory Steady-State Response (ASSR) with free-field stimuli. Fifty-four ears with normal criteria of children between 6 months and 24 months of age were assessed. The latencies found with free-field stimulation in ABR were significantly longer than the latencies with insert earphone stimulation (p<0.05), and no differences were found in the inter-latencies. No significant differences were found in the thresholds of the ASSR response. We conclude that the ABR thresholds obtained in the free-field correspond to the delay due to the distance of the sound source to the eardrum and, therefore, are superimposable, being applicable to patients where it is not possible to stimulate with insert phones.
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Renier, Laurent. "Sensory Substitution: From Sensations to Phenomenology". En Sensory Substitution and Augmentation, editado por Fiona Macpherson, 43–59. British Academy, 2018. http://dx.doi.org/10.5871/bacad/9780197266441.003.0002.

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Sensory substitution refers to the use of one sensory modality (e.g. hearing) to supply environmental information normally gathered by another sense (e.g. vision) while still preserving some of the key functions of the original sense. For example, the use of auditory signals might give information about visual scenes. The development of sensory substitution devices has profoundly changed the classical definition of sensory modalities and contributed to the emergence of a new form of perception. In the last decade, our knowledge about cognitive and brain mechanisms involved in sensory substitution has grown considerably, bringing new insights into human perception. The phenomenological experience of perceiving via a sensory substitution device can now be discussed in the light of current scientific knowledge. Thanks to technological advances and scientific achievements, sensory substitution has become a real alternative for restoring some functions of a defective sensory organ (e.g. sight in the case of blindness or hearing in the case of deafness). This essay addresses some of the major questions raised by sensory substitution, including discussions regarding the nature of perception arising from the use of such devices, demonstrates how the study of sensory substitution enhances our understanding of human perception and brain plasticity and provides a short overview of rehabilitation potentialities.
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Actas de conferencias sobre el tema "Normal hearing function"

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Miller, Douglas A. y Mohammad A. Matin. "Modeling the head related transfer function for sound localization in normal hearing persons and bilateral cochlear implant recipients". En 2011 14th International Conference on Computer and Information Technology (ICCIT). IEEE, 2011. http://dx.doi.org/10.1109/iccitechn.2011.6164811.

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Pertz, M., JP Thomas, S. Dazert y C. Völter. "Executive functions: reaction time in persons with hearing loss and normal hearing". En Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1640513.

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Moldoveanu, Alin, Oana Balan y Florica Moldoveanu. "TRAINING SYSTEM FOR IMPROVING SPATIAL SOUND LOCALIZATION". En eLSE 2014. Editura Universitatii Nationale de Aparare "Carol I", 2014. http://dx.doi.org/10.12753/2066-026x-14-011.

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This paper presents a new training system for 3D audio space localization, part of a more complex project, Sound of Vision, which is intended to be an object recognition and navigation aid system for visually-impaired people. As a large number of people are suffering from a visual handicap which impedes them from normally accomplishing their daily chores, there is need for an assistive device that replaces sight with another sense, for instance, hearing. The most important aspect in the sound localization techniques is the human capacity to discriminate between different sounds playing at various locations in space. The aim of the presented audio system is to train and test the subjects' space localization ability, hence to develop and improve their 3D recognition skills. The solution uses binaural sounds conveyed through headphones as basic blocks, applying HRTFs to various sounds (Head Related Transfer Function - a physical propagation characteristic that describes how the ear perceives the sound coming from a particular point in space). The acoustic signals represent short (e.g. 20ms long) white and pink noise sounds, externalized with non-individualized HRTFs recorded in dedicated lab environments. Thus, from a monaural noise sound, through the process of mathematical convolution with the corresponding angular HRTF impulse for both the left and right channels, we obtained a 3D binaural sound which is perceived as coming from the particular direction specified by the angular value of the convoluted HRTF. The program is composed of a training module, where the user moves the mouse cursor inside a circle and hears a continuous binaural sound that corresponds to the azimuth angle indicated on the circle- ranging from 0 to 355 degrees, and a test module- where the subject is presented 10 different sounds that correspond to 10 different locations, being required to point out on the circle the presumed emitting location of the sound, as he perceives it. Through learning and training, the users (both normal-sighted and visually impaired subjects) performed various auditory tasks- identification, recognition, discrimination- and improved their sound localization capacity. This paper gives on overview of 3 aspects: the technical realization of the system, the experimental results with a set of training subjects and the advanced observations about sound localization that we made.
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Bauernfeind, G., S. Wriessnegger, S. Haumann y T. Lenarz. "Functional near-infrared spectroscopy to investigate possible laterality effects of auditory-induced activation patterns in normal hearing subjects and CI user". En Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1639810.

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