Tesi sul tema "ERPs"
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Jardin, Elliott C. "Recognition Memory Revisited: An Aging and Electrophysiological Investigation". Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1548157727480549.
Testo completoHenderson, Ross Munro. "Visual event-related potentials in normal and abnormal development". Thesis, Glasgow Caledonian University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311800.
Testo completoMertens, Ralf. "The Role of Psychophysiology in Forensic Assessments: Deception Detection, ERPs and Virtual Reality Mock Crime Scenarios". Diss., Tucson, Ariz. : University of Arizona, 2006. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1470%5F1%5Fm.pdf&type=application/pdf.
Testo completoGardner, Aaron, Marissa R. Kellicut e Eric W. Dr Sellers. "An Examination of ERPs produced by Images of Locations and Graspable Objects in an Oddball Task". Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/32.
Testo completoSinghal, Anthony. "Attentional workload and the ERPs, negative difference (Nd) and mismatch negativity (MMN)". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ39233.pdf.
Testo completoWang, Anli. "Functional significance of human sensory ERPs : insights from modulation by preceding events". Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:2dcd4959-8638-4ee1-b591-3eb28bdf3a1d.
Testo completoDoran, Matthew M. "The role of visual attention in multiple object tracking evidence from ERPS". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 110 p, 2009. http://proquest.umi.com/pqdweb?did=1885675151&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Testo completoCARRERA, ALBA. "L'integrazione cross-modale delle emozioni: componente mimica e vocale. Correlati psicofisiologici (ERPS)". Doctoral thesis, Università Cattolica del Sacro Cuore, 2007. http://hdl.handle.net/10280/154.
Testo completoThe study investigates the simultaneous processing of emotional tone of voice and emotional facial expression by event-related potentials (ERPs), through an ample range of different emotions. Auditory emotional stimuli and visual patterns were matched in congruous and incongruous pairs. ERPs variations and behavioral data (response time) were submitted to repeated measures analysis of variance (ANOVA). ANOVA showed numerous ERP effects, with different cognitive functions. Some of them, in particular the medium-latency P200, are highly sensible to pattern congruent/incongruent condition (with more intense amplitude for congruent rather then incongruent stimuli) and constitute intersensory integration specific markers. The other ERP effects, instead, are more sensible to the emotional content and signal the presence of cognitive processes that are more generally tied to the emotional decoding. Furthermore results show that, in the first processing phase, integration is an automatic and obliged phenomenon, while later it implies intentional decisional processes. Finally, a TR reduction was found for some congruous patterns (i.e. sadness) and an inverted effect for a second group of emotions (i.e. fear, anger, and surprise). Finally, behavioural results indicate that congruence causes a RT reduction for some emotions (sadness) and, on the contrary, an inverse effect for other emotions (fear, anger, surprise). This result is discussed with reference to different emotional correlates adaptive function and their respective cross-modal decoding processes.
CARRERA, ALBA. "L'integrazione cross-modale delle emozioni: componente mimica e vocale. Correlati psicofisiologici (ERPS)". Doctoral thesis, Università Cattolica del Sacro Cuore, 2007. http://hdl.handle.net/10280/154.
Testo completoThe study investigates the simultaneous processing of emotional tone of voice and emotional facial expression by event-related potentials (ERPs), through an ample range of different emotions. Auditory emotional stimuli and visual patterns were matched in congruous and incongruous pairs. ERPs variations and behavioral data (response time) were submitted to repeated measures analysis of variance (ANOVA). ANOVA showed numerous ERP effects, with different cognitive functions. Some of them, in particular the medium-latency P200, are highly sensible to pattern congruent/incongruent condition (with more intense amplitude for congruent rather then incongruent stimuli) and constitute intersensory integration specific markers. The other ERP effects, instead, are more sensible to the emotional content and signal the presence of cognitive processes that are more generally tied to the emotional decoding. Furthermore results show that, in the first processing phase, integration is an automatic and obliged phenomenon, while later it implies intentional decisional processes. Finally, a TR reduction was found for some congruous patterns (i.e. sadness) and an inverted effect for a second group of emotions (i.e. fear, anger, and surprise). Finally, behavioural results indicate that congruence causes a RT reduction for some emotions (sadness) and, on the contrary, an inverse effect for other emotions (fear, anger, surprise). This result is discussed with reference to different emotional correlates adaptive function and their respective cross-modal decoding processes.
Strauss, Mélanie. "Etude magnéto-encéphalographique de la profondeur du traitement de l’information auditive pendant le sommeil". Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCB113/document.
Testo completoSleep can be defined as a behavioral state of rest in which consciousness of external stimuli vanishes and responsiveness to the environment is drastically reduced. When we sleep, however, we may still react and wake up to our name or to the alarm clock, suggesting that some processing of external stimuli remains. We address in the present work the question of how deeply external information is processed during sleep. We recorded brain activity in adult human subjects simultaneously in electro and magnetoencephalography (EEG and MEG) in response to auditory stimulation, before, during and after a short period of sleep. In order to test information integration through the brain hierarchy, we focused on hierarchical predictive coding capabilities, which enable the brain to anticipate the future from previous knowledge. Predictions occur at many if not all steps of the cortical hierarchy. Testing different levels of predictions enables us to assess the steps at which information integration is disrupted during sleep. We first tested the capacity of the sleeping brain to detect auditory novelty. We analyzed brain responses to violations of local and global temporal regularities, which are respectively reflected in EEG during wakefulness by two successive prediction error signals, the mismatch negativity (MMN) and the P300. Our analysis revealed that both the MMN and the P300 vanish during sleep, along with the loss of activations in prefrontal and parietal associative areas. The MMN gradually decreased in the descent to sleep, whereas the P300 vanished abruptly with the loss of awareness during N1 sleep. This all-or-none behavior strongly reinforces the hypothesis that the P300 is a marker of consciousness. Even so, we showed that sounds still activate sensory cortices, and that the brain remains able to detect new sounds and to habituate to them, but only in the limited context of sensory adaptation. Having demonstrated the disruption of predictive coding for arbitrary and newly acquired statistical regularities, in a second set of experiments we tested the capacity of the sleeping brain to develop predictions of future auditory stimuli for over-learned semantic knowledge stored in long-term memory. We presented sleeping subjects with simple arithmetic facts such as “two plus two is nine” and recorded brain responses to correct or incorrect results. We discovered that the sleeping brain was still able to detect arithmetic violations, with activations in part similar to wakefulness. We suggest that, although sleep disrupts explicit arithmetic computations, there is a preservation of prediction error signals for arithmetic facts stored in long-term memory. The present work clarifies the steps at which auditory information integration is disrupted during sleep, and which cognitive functions remain or vanish. The preservation of low-level sensory adaptation and of predictions from long term memory may account for the residual responsiveness that can be observed during sleep, while subjects are unconscious. Finally, these results also help to better understand why a given stimulus may or may not be processed during sleep. The depth of information integration is function of the ongoing spontaneous oscillations of the sleeping brain, but also of the nature of the stimulus, i.e. its salience, its knowledge, and its relevance
Bretherton, Paul. "The neural mechanisms of attention : exploring threat-related suppression and enhancement using ERPs". Thesis, University of Roehampton, 2016. https://pure.roehampton.ac.uk/portal/en/studentthesis/the-neural-mechanisms-of-attention(87e183ac-3a36-40e6-9c69-91f7c1209e87).html.
Testo completoGorey, Claire M. "Age of Alcohol Initiation and Reward Processes in a Current Alcohol Drinking Sample". Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6847.
Testo completoSouth, Andrew. "Design and development of an event related potential measurement system". Thesis, Sheffield Hallam University, 1999. http://shura.shu.ac.uk/20387/.
Testo completoJarchi, Delaram. "Estimation of single trial ERPs and EEG phase synchronization with application to mental fatigue". Thesis, University of Surrey, 2011. http://epubs.surrey.ac.uk/804408/.
Testo completoMohr, Sibylle. "The neurocognition of linguistic conflict resolution : evidence from brain oscillations, ERPs, and source modelling". Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/4084/.
Testo completoLemos, Mauro Tadeu Silveira. "Fatores cr??ticos de sucesso na implanta????o e gest??o de sistemas ERPs". FECAP - Faculdade Escola de Com??rcio ??lvares Penteado, 2007. http://132.0.0.61:8080/tede/handle/tede/455.
Testo completoThis work has as objective to confirm the importance of some aspects related to the implantation of systems of type ERP, searching to supply elements that subsidize managers, involved suppliers of solutions and executives in the administration of projects of implantation of Integrated Systems of Management. Its development had as base a research of field that involved 162 people, amongst users, managers of ERPs, suppliers of services and executives of companies who use systems as SAP, Oracle, Microsiga, Datasul, RM Sistemas and JDEdwards. These people had answered the questions related to the training of the users, envolvement and availability of the participant team of the implantation process, commitment of the directive body of the company, use of benchmark and definition of pointers that allow measuring the reached success. Also it was carried through interviews with users and managers of great companies in a qualitative boarding, in order to confirm the results of the quantitative research, as well as identifying to new information and suggestions of as it can be the shunting line administration eventual or imperfections during the implementation of integrated systems of management. Another boarded aspect in this work is the importance of the Controller in the implantation of system ERP, in part or during the entire project. This study it aims at, mainly, the control and metric used for accompaniment and alignment how much to the objective traced for the company in its decision of organizacional change with this new project
Este trabalho tem como objetivo confirmar a import??ncia de determinados aspectos relacionados ?? implanta????o de sistemas do tipo ERP, buscando fornecer elementos que subsidiem gestores, provedores de solu????es e executivos envolvidos na administra????o de projetos de implanta????o de Sistemas Integrados de Gest??o. Seu desenvolvimento teve como base uma pesquisa de campo que envolveu 162 pessoas, entre usu??rios, gestores de ERPs, provedores de servi??os e executivos de empresas que utilizam sistemas como SAP, Oracle, Microsiga, Datasul, RM Sistemas e JDEdwards. Essas pessoas responderam a quest??es relacionadas ao treinamento dos usu??rios, envolvimento e disponibilidade da equipe participante do processo de implanta????o, comprometimento do corpo diretivo da empresa, utiliza????o de benchmark e defini????o de indicadores que permitam mensurar o sucesso alcan??ado. Tamb??m foram realizadas entrevistas com usu??rios e gestores de grandes empresas numa abordagem qualitativa, a fim de confirmar os resultados da pesquisa quantitativa, bem como identificar novas informa????es e sugest??es de como pode ser a administra????o de eventuais desvios ou falhas durante a implementa????o de Sistemas Integrados de Gest??o. Outro aspecto abordado neste trabalho ?? a import??ncia da Controladoria na implanta????o do sistema ERP, em parte ou durante todo o projeto. Este estudo visa, principalmente, o controle e m??tricas utilizadas para acompanhamento e alinhamento quanto ao objetivo tra??ado pela empresa em sua decis??o de mudan??a organizacional com este novo projeto.
El, Yagoubi Radouane. "Effets du vieillissement dans la cognition numérique : études comportementale, électrophysiologique (ERPs) et neurofonctionnelle (IRMf)". Aix-Marseille 1, 2004. http://www.theses.fr/2004AIX10092.
Testo completoScrivano, Rachel. "Age-Related Differences in Inhibitory Function: Investigation of Simon and Flanker Conflicts in Erps". W&M ScholarWorks, 2019. https://scholarworks.wm.edu/etd/1563899044.
Testo completoHiggoda, W. R. S. M. Ubaya Ashandika. "Effects of Planning systems of Universities on Management Control Systems and Organizational Performance : A case study at KTH". Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99009.
Testo completoME200X
Zambrano-Vazquez, Laura, e Laura Zambrano-Vazquez. "The Interaction of State and Trait Worry on Response Monitoring in Those with Worry and Obsessive-Compulsive Symptoms". Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/620615.
Testo completoVagnini, Victoria Louise. "APPLYING REACTION TIME (RT) AND EVENT-RELATED POTENTIAL (ERPS) MEASURES TO DETECT MALINGERED NEUROCOGNITIVE DEFICIT". UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_diss/528.
Testo completoCermolacce, Michel. "ERPs et troubles psychiatriques : De la notion d' endophénotype aux aspects phénoménologiques des processus neurolinguistiques". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4012.
Testo completoThe aim of our projectwas to examine semantic access from an electrophysiological view. We specifically explored two Event-related Potentials (ERPs): N400, associated to semantic processing, and P600, associated to syntactic, semantic and non linguistic and general processes. In the first part of our project, we have explored these ERPs among healthy participants and psychiatric patients. People with schizophrenia exhibit thought and language disorders. In spite of common clinical manifestations with schizophrenia, patients with bipolar disorders (BDs) have rarely been assessed using neurolinguistic ERPs. We have conducted three electrophysiological studies in natural speech conditions. In the first study, we validated our original linguistic material among healthy participants. Then, in a clinical transfer perspective, we assessed manic patients suffering from BDs (second study) and patients with schizophrenia (third study, in preparation) using the same linguistic material. Our results support the hypothesis of a preserved N400 component in patients with BDs. On the contrary, preliminary results showed a disturbed N400 associated to congruent sentences among patients with schizophrenia.After discussing the limitations of the notion of clinical transfer and of our experimental studies, we also presented two alternative perspectives on speech comprehension. One the one hand, we described a linguistic model inherited from phenomenology, structuralism and morphodynamics. On the other hand, we reported first person data obtained through elicitation techniques. These experiential data enable us to better grasp semantic phenomena involved in our both experiments
Kang, Xin. "Establishing object-state representation in language comprehension : evidence from picture verification, eye-tracking and ERPs". Thesis, University of York, 2015. http://etheses.whiterose.ac.uk/10576/.
Testo completoLalor, David Milo. "The recollection component of recognition memory as a function of response confidence: an event-related brain potential study". University of Southern Queensland, Faculty of Sciences, 2003. http://eprints.usq.edu.au/archive/00001454/.
Testo completoTeles, Alexandra Raquel Lavouras. "Processamento de sinais eletroencefalográficos durante protocolo experimental de teste de interferência de stroop". Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/9966.
Testo completoMukta, Kamrun Nahar. "Brain Activity in Spherical Topology via Neural Field Theory". Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22675.
Testo completoTanguay, Annick. "The Neural Correlates of Personal Semantics". Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38251.
Testo completoMoadab, Ida. "The Role of Mindfulness and Self-Compassion in the Neural Mechanisms of Attention and Self-Monitoring". Thesis, University of Oregon, 2013. http://hdl.handle.net/1794/13402.
Testo completoKamal, Farooq. "The Use of EEG and ERPs in the Study of Aging and Mild Cognitive Impairment (MCI)". Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42615.
Testo completoYang, Yu-Fang. "Contribution des caractéristiques diagnostiques dans la reconnaissance des expressions faciales émotionnelles : une approche neurocognitive alliant oculométrie et électroencéphalographie". Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS099/document.
Testo completoProficient recognition of facial expression is crucial for social interaction. Behaviour, event-related potentials (ERPs), and eye-tracking techniques can be used to investigate the underlying brain mechanisms supporting this seemingly effortless processing of facial expression. Facial expression recognition involves not only the extraction of expressive information from diagnostic facial features, known as part-based processing, but also the integration of featural information, known as configural processing. Despite the critical role of diagnostic features in emotion recognition and extensive research in this area, it is still not known how the brain decodes configural information in terms of emotion recognition. The complexity of facial information integration becomes evident when comparing performance between healthy subjects and individuals with schizophrenia because those patients tend to process featural information on emotional faces. The different ways in examining faces possibly impact on social-cognitive ability in recognizing emotions. Therefore, this thesis investigates the role of diagnostic features and face configuration in the recognition of facial expression. In addition to behavior, we examined both the spatiotemporal dynamics of fixations using eye-tracking, and early neurocognitive sensitivity to face as indexed by the P100 and N170 ERP components. In order to address the questions, we built a new set of sketch face stimuli by transforming photographed faces from the Radboud Faces Database through the removal of facial texture and retaining only the diagnostic features (e.g., eyes, nose, mouth) with neutral and four facial expressions - anger, sadness, fear, happiness. Sketch faces supposedly impair configural processing in comparison with photographed faces, resulting in increased sensitivity to diagnostic features through part-based processing. The direct comparison of neurocognitive measures between sketch and photographed faces expressing basic emotions has never been tested. In this thesis, we examined (i) eye fixations as a function of stimulus type, and (ii) neuroelectric response to experimental manipulations such face inversion and deconfiguration. The use of these methods aimed to reveal which face processing drives emotion recognition and to establish neurocognitive markers of emotional sketch and photographed faces processing. Overall, the behavioral results showed that sketch faces convey sufficient expressive information (content of diagnostic features) as in photographed faces for emotion recognition. There was a clear emotion recognition advantage for happy expressions as compared to other emotions. In contrast, recognizing sad and angry faces was more difficult. Concomitantly, results of eye-tracking showed that participants employed more part-based processing on sketch and photographed faces during second fixation. The extracting information from the eyes is needed when the expression conveys more complex emotional information and when stimuli are impoverished (e.g., sketch). Using electroencephalographic (EEG), the P100 and N170 components are used to study the effect of stimulus type (sketch, photographed), orientation (inverted, upright), and deconfiguration, and possible interactions. Results also suggest that sketch faces evoked more part-based processing. The cues conveyed by diagnostic features might have been subjected to early processing, likely driven by low-level information during P100 time window, followed by a later decoding of facial structure and its emotional content in the N170 time window. In sum, this thesis helped elucidate elements of the debate about configural and part-based face processing for emotion recognition, and extend our current understanding of the role of diagnostic features and configural information during neurocognitive processing of facial expressions of emotion
Forbes, Kelly A. K. "Event-related brain potentials (ERPs) measure the influences of orthographic, phonological and semantic representations during silent reading". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0025/NQ36579.pdf.
Testo completoMendes, Juliana Veiga. "Avaliação de sistemas ERPs como ferramenta de mudança organizacional nas pequenas e médias empresas: um roteiro auxiliar". Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18135/tde-27062016-104806/.
Testo completoThis thesis aims to develop a plan in order to help small and medium enterprises (SMEs) to adopt the Enterprise Resource Planning (ERP) as a tool for organizational change. Before deciding about te ERP\'s adoption, SMEs need to carry out a deep analysis about which solution better fits their problems, thus aiming to guarantee that investments, which are scarce in this sector, may bring the expected benefits. Besides this analysis about the necessary investments, SMEs should evaluate the impacts the system will cause, as well as the changes incurred by its introduction and use. In order to reach this objective, we first carried out a bibliographical study about the following subjects: organizational change, ERP systems and SMEs. After this study, we conducted a field research, carried through in two steps. The first step, which we called Preliminary Survey, has consisted in an exploratory field research, where we identified the ERP systems that were avaiable in the market as well as some SMEs, located in the São Paulo region, that utilized these systems. In the second step we made a field research, through intensive direct observation combined with the applying of the plan we developed in this work. In this second phase, we picked up two enterprises, among those studied in the first step, and they were analyzed in a more detailed way. As a final result, we present a plan developed to guide the decisions of SMEs in which relates the adoption of ERPs systems, in the context of organizational change. As a contribution of the research we will propose some subsidies aiming to help SMEs\'businessmen in their decisions about the acquisition of ERPs, avoiding being deluded by \"managerial fads\"; we will also present some information that ERPs producers may utilize in order to identify possible lacks, not contemplated by current avaiable ERPs systems.
Fardo, Francesca. "Influence of body position, emotions, placebo and cognitive modulation on pain experience and pain-related somatosensory ERPs". Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423020.
Testo completoIl presente lavoro di ricerca ha contribuito alla comprensione dei meccanismi neurocognitivi sottostanti alla modulazione del dolore da parte di processi sensoriali, attenzionali, emozionali e cognitivi. Abbiamo preso in considerazione indici soggettivi, comportamentali ed elettrofisiologici per rilevare gli effetti della posizione del corpo, delle emozioni, delle aspettative legate al placebo, e del reappraisal cognitivo sull’esperienza soggettiva del dolore e sui potenziali somatosensoriali dolore-relati. Quattro studi sono stati condotti per indagare differenti tipologie di modulazione del dolore. Lo Studio 1 ha testato l’ipotesi che la posizione orizzontale del corpo riduca la percezione e l’elaborazione corticale del dolore. Abbiamo dimostrato che la posizione del corpo supina vs. seduta era associata ad una diminuita percezione di stimoli non dolorosi e ad una inibita elaborazione corticale tardiva (300-600) di stimoli dolorosi e non dolorosi, relata ad attività neurale in regioni frontali destre (corteccia cingolata anteriore e giro frontale superiore). Lo Studio 2 ha indagato le differenze di genere nella modulazione emozionale del dolore. Sebbene maschi e femmine non differissero a livello comportamentale e mostrassero ridotti punteggi di dolore solamente durante la visione di immagini erotiche, delle notevoli differenze di genere sono emerse nei potenziali N2 e P2 elicitati da stimoli dolorosi. I maschi avevano mostrato una inibita elaborazione corticale del dolore solamente durante la visione di immagini erotiche, mentre le femmine hanno mostrato una modulazione corticale del dolore diversificata per ogni contenuto emozionale preso in considerazione (immagine erotiche vs. sport/avventura vs. neutre vs. paura/minaccia vs. mutilazione), in particolare per la N2. Nello Studio 3, abbiamo esaminato il ruolo delle credenze individuali nell’efficacia di un trattamento analgesico tradizionale e di uno omeopatico. Abbiamo utilizzato un paradigma decettivo, i.e., né i partecipanti, né le sperimentatrici erano a conoscenza che il trattamento somministrato era una sostanza inerte. Abbiamo trovato che solamente i partecipanti che assumevano un trattamento che era coerente con le loro credenze mostravano una ridotta elaborazione corticale del dolore, indicata da diminuite ampiezze della P2. Infine, lo Studio 4 ha dimostrato che i partecipanti sani sono in grado di modificare la propria esperienza del dolore, utilizzando una strategia di reappraisal cognitiva che fa uso di immagini mentali. L’intensità di dolore percepita era o diminuita o aumentata rispetto ad una condizione neutra e un’efficace inibizione del dolore era associata ad incrementate ampiezze N2 e diminuite ampiezze P2
Vega, Mendoza Mariana. "Studies of non-native language processing : behavioural and neurophysiological evidence, and the cognitive effects of non-balanced bilingualism". Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/21681.
Testo completoLi, Xuan. "Electrophysiological Evidence for Adult Age Differences in Orientation Discrimination". University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1512732686486329.
Testo completoHall, Mei-Hua. "A twin study using event related potentials (ERPs) to investigate the genetic relationships between schizophrenia and bipolar illness". Thesis, King's College London (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439533.
Testo completoOLIVEIRA, L??vio Falc??o Costa Cir??aco. "Rela????o entre a ado????o de ERPs e o desempenho financeiro das empresas brasileiras de capital aberto". FECAP, 2013. http://tede.fecap.br:8080/jspui/handle/tede/693.
Testo completoMade available in DSpace on 2016-03-16T13:41:45Z (GMT). No. of bitstreams: 2 Lavio_Falcao_Costa_de_Oliveira.pdf: 562663 bytes, checksum: 2007541cdd14b8882c600047bb955d18 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-10-14
This research examines the effect of Enterprise Resource Planning (ERP) adoption on the financial performance of 87 Brazilian companies listed on the Sao Paulo Stock Exchange (BMF&BOVESPA), compared with a group of 43 companies that have not adopted the system at the analyzed period of time. This study is a replication of Hunton et al. (2003) research to the reality of the Brazilian marketplace and evaluates the ROA (Return on Assets), ROS (Return on Sales), ATO (Asset Turnover) and ROI (Return on Investments) profitability indicators, controlling for size and financial health. Results, in general, indicated no significant performance differences between the time before and after the implementation of ERP systems, which indicated that the ROA, ROI and ACT were significantly better for ERP adopters.
Esta pesquisa examina o efeito da ado????o de sistemas Enterprise Resource Planning (ERP) sobre o desempenho financeiro de 87 empresas brasileiras listadas na Bolsa de Valores do Estado de S??o Paulo (BM&FBOVESPA), comparado com um conjunto de 43 empresas que n??o adotaram o sistema no per??odo de tempo analisado. Este estudo ?? uma replica????o da pesquisa de Hunton et al. (2003) para a realidade do mercado Brasileiro e avalia os indicadores de rentabilidade ROA (Return on Assets), ROS (Return on Sales), ATO (Asset Turnover) e ROI (Return on Investments), controlando o porte e sa??de financeira das empresas. Os resultados, de maneira geral, n??o indicaram significante diferen??a de desempenho entre o per??odo anterior e posterior ?? implanta????o dos sistemas ERP, divergindo da pesquisa de Hunton et. al (2003) que indicou que o ROA, ROI e ATO foram significativamente melhores para empresas que adotaram o ERP.
Goodwin, Matthew John. "Power and Politics in a University ERP Implementation". Thesis, Griffith University, 2011. http://hdl.handle.net/10072/365906.
Testo completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Information and Communication Technology
Science, Environment, Engineering and Technology
Full Text
Pooviboonsuk, Prakob. "An investigation of the relationship between event-related potentials (ERPs) and the amnesiac and sedative effects of psychotropic drugs". Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339129.
Testo completoSoares, Nelson Edgar Moço. "Avaliar e melhorar a qualidade dos dados com impacto no negócio num processo de migração de dados entre ERPs". Master's thesis, Instituto Superior de Economia e Gestão, 2015. http://hdl.handle.net/10400.5/10791.
Testo completoApesar de toda a literatura publicada sobre a melhoria da qualidade de dados, problemas de qualidade de dados continuam a afetar a operacionalidade das empresas e dos seus sistemas de decisão. Reconhecendo este facto, a RetailPC, uma empresa de comércio a retalho de equipamento informático, aceitou a realização da presente investigação, a qual teve como objetivo a avaliação e melhoria da qualidade de dados da sua entidade Cliente, durante um processo de migração de dados entre dois ERPs (Primavera Professional para SAP Business One). Para o efeito, foi utilizada a metodologia Action Research, uma vez que permite ao investigador assumir um papel intervencionista na resolução do problema da qualidade de dados. No caso concreto deste trabalho, foi avaliada e melhorada a qualidade de dados durante a migração entre ERPs e alterados processos de recolha dos mesmos, tendo sido disponibilizados meios de diagnóstico para futuros ciclos de Action Research. No final, foi possível constatar que a qualidade de dados foi melhorada significativamente. Foi possível corrigir todos os erros detetados nos atributos ShipType (Modo de expedição), PymCode (Formas de pagamento), Currency (Moeda) e LangCode (Língua da documentação enviada para o cliente); 98,53% dos erros detetados em sujeitos passivos coletivos com respeito ao atributo LicTradNum (NIF); 56,67% das moradas com erros do atributo ZipCode (Código Postal) e 99,65% dos tuplos que continham valores no atributo IntrntSite, uma vez estava a ser utilizado para um fim diferente do previsto pelo ERP, tendo esses valores sido migrados para o atributo E_Mail para posterior tratamento.
Despite all the published literature on data quality enhancement, data quality problems continue to affect the company's operation and their decision systems. In recognition of that, RetailPC, an IT equipment retail trading company, accepted to be part of the present research, which aimed the assess and improve data quality of its Customer entity during a data migration process between ERPs (Primavera Professional to SAP Business One). For this purpose, it was used the Action Research methodology, as it allows the researcher to assume an interventional role in the resolution of the data quality problem. In the specific case of this research, has been assessed and enhanced data quality during data migration and changed data collection processes, were made available diagnostic methods for future cycles of Action Research. At the end it was perceived that the quality of data is improved significantly. It was possible to correct all the errors detected in attributes ShipType (Delivery mode), PymCode (Payment Methods), Currency (Currency) and LangCode (Language of documents sent to customer); correct 98.53% of detected errors in collective taxpayers with respect to LicTradNum attribute (Tax ID); 56.67% of addresses with errors in ZipCode attribute (Postal Code) and 99.65% of tuples that contain values in IntrntSite attribute, as was being used for a different purpose from that defined by the ERP, and these values were migrated to E_Mail attribute for further processing. They were also detected and eliminated 323 tuples of entities that were duplicated.
Assolari, Lilian Moreira de Alvarenga. "Influência dos sistemas empresariais integrados (ERPs) nos aspectos organizacionais da área de contabilidade : estudo de casos em empresas do Paraná". Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/12/12136/tde-09042007-191534/.
Testo completoAccording to literature in the area, the decision about whether or not to implement ERP (Enterprise Resource Planning) is not a matter of technology alone, but rather, a matter of strategy, since its implementation requires deep changes in the organization. Still according to research already published, this implementation generates deep changes in the area of accounting of organizations as well. Due to this fact, this research was carried out aiming at understanding and describing the influence of the implementation of ERP on the organizational aspects in the area of accounting of enterprises, particularly in what concerns the changes in structure, activities developed, besides knowledge and abilities required for the carrying out of tasks. Seeking to achieve the purpose of this research, the procedures followed an empirical analytical methodological approach as a guideline to Case Studies carried out in enterprises in the State of Paraná. The analysis took into account two cases of enterprises that implemented ERP R/3 by SAP (supplier of software solutions for enterprises). The analysis of data shows that the implementation of ERP gives rise to changes not only in the organizational structure but also in activities and in knowledge and abilities within the accounting area of enterprises. The changes found within the organizational structure allude to organizational design, job designs and personnel. As far as activities go, changes are related to the kind of activity performed in the area (inclusion or exclusion), and to the way of performing them. Concerning knowledge and abilities, changes regard general and technical knowledge, and intellectual, interpersonal and communicative abilities. Nevertheless, the analysis of data leads to the understanding of the fact that ERP implementation acts more directly upon activities; thus, both the organizational structure and knowledge and abilities are affected as well, and need adjustments; that is to say, the intensity of changes operating on the organizational structure and on knowledge and abilities is related to the depth of the changes that have an effect on the activities. However, although ERP has the potential to alter activities, changes vary among enterprises, since the implementation itself does not always promote the same changes; both nature and depth of changes depend on decisions made by those responsible for the business and by the group in charge of the project, and not only during but also after ERP implementation, when the system is already in action.
Romeo, Zaira. "The cognitive demand of multitasking under visuo-spatial processing: Assessment, ERPs and electrophysiology of brain networks in chronic stroke patients". Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426801.
Testo completoQuesto lavoro di tesi indaga diversi aspetti relativi all’elaborazione visuo-spaziale da un punto di vista clinico, elettrofisiologico e neurofunzionale, al fine di contribuire allo studio dei disturbi neurologici che comportano deficit a livello percettivo. Il filo conduttore è stato l’utilizzo del carico cognitivo per studiare deficit di consapevolezza spaziale che possono emergere a seguito di un ictus cerebrale. Abbiamo mostrato come l’aumento della difficoltà di un compito sia in grado di rilevare asimmetrie spaziali patologiche in pazienti con lesioni cerebrali all’emisfero destro o sinistro che avevano una prestazione nella norma ai classici test neuropsicologici “carta e matita”. Sebbene i disturbi visuo-spaziali siano ritenuti infrequenti a seguito di lesioni emisferiche sinistre, sorprendentemente il confronto di queste due popolazioni cliniche mette in luce l’efficacia del multitasking nell’individuare pattern di negligenza ed estinzione indipendentemente dal lato della lesione. Una versione modificata del nostro paradigma di multitasking è stata inoltre somministrata ad un gruppo di giovani partecipanti sani al fine di studiare i correlati elettrofisiologici del monitoraggio spaziale, confrontando l’elaborazione corretta ed incorretta di stimoli apparsi nella periferia del campo visivo. La difficoltà del compito è stata aumentata rispetto alla versione clinica al fine di ottenere un consistente numero di stimoli non individuati e dunque di simulare la prestazione di pazienti neurologici. I nostri risultati supportano l’ipotesi che in condizione di multitasking l’elaborazione di informazioni visive sia regolata da un criterio di soglia. Nello specifico, la corretta percezione di uno stimolo è determinata dal raggiungimento di un’ampiezza critica dell’attività corticale. Infine, abbiamo condotto uno studio in resting state al fine di studiare la correlazione tra attività cerebrale spontanea e prestazione comportamentale, misurata attraverso classici indici neuropsicologici ed indici di costo al multitasking. Questo studio prende in considerazione l’ipotesi che la cognizione non sia associata soltanto alla specializzazione delle regioni cerebrali, ma anche all’organizzazione su larga scala di reti neuronali funzionalmente connesse. Attraverso l’utilizzo di un metodo di analisi allo stato dell’arte, 14 reti cerebrali, precedentemente studiate con tecniche di risonanza magnetica funzionale, sono state estratte dal segnale elettroencefalografico in un gruppo di pazienti con esiti di ictus in fase cronica. Inoltre, è stata analizzata l’integrazione di particolari cluster all’interno di ciascuna rete, indagando anche la relativa correlazione con indici comportamentali ed il contributo di specifiche bande di frequenza. In sintesi, questo lavoro empirico offre un contributo originale allo studio dei meccanismi sottostanti l’organizzazione cerebrale a seguito di ictus e delle relative ripercussioni sulla prestazione cognitiva.
Kretzschmar, Franziska [Verfasser], e Matthias [Akademischer Betreuer] Schlesewsky. "The electrophysiological reality of parafoveal processing : on the validity of language-related ERPs in natural reading / Franziska Kretzschmar. Betreuer: Matthias Schlesewsky". Marburg : Philipps-Universität Marburg, 2011. http://d-nb.info/1016532849/34.
Testo completoPakulak, Eric Robert. "An investigation of the effects of proficiency and age of acquisition on neural organization for syntactic processing using ERPs and fMRI". Thesis, University of Oregon, 2008. http://hdl.handle.net/1794/8590.
Testo completoImprovements in neuroimaging techniques have made it possible to answer questions regarding the neural organization for the processing of syntax in normal participants. In this series of experiments we examined the effects of linguistic proficiency and age of second language acquisition on neural organization for syntactic processing. We examined these factors using two complementary methodologies: event-related potentials (ERPs), which affords a temporal resolution on the order of milliseconds, and functional magnetic resonance imaging (fMRI), with spatial resolution on the order of millimeters. In order to compare results across methodologies, we used an auditory syntactic violation paradigm with similar experimental parameters in each methodology. In Chapter II we examined neural organization for syntactic processing using ERPs in monolingual native speakers of higher and lower proficiency and found that violations elicited an early onset (100 ms) anterior negativity (EOAN) followed by a later positivity (P600) in all participants. Compared to lower proficiency participants, higher proficiency participants showed an EOAN that was more focal spatially and temporally, and showed a larger P600. These results were supported by a correlational analysis of a larger group of monolingual native speakers with a wide range of proficiency scores. This analysis also found a relationship between childhood socioeconomic status and the recruitment of the EOAN over left hemisphere sites, raising the hypothesis that effects of childhood experience may endure into adulthood. In Chapter III we examined the effects of age of acquisition on syntactic processing by recruiting a group of late learners of English who were matched for proficiency with a group of monolingual native speakers from Chapter II. While in native speakers violations elicited a robust EOAN, this effect was absent in the late learner group, suggesting that early language exposure is important for the recruitment of resources reflected in this effect and independently of proficiency. In Chapter IV we gathered ERP and fMRI data from monolingual native speakers and found proficiency differences in the recruitment for syntactic processing of left inferior frontal and posterior regions. We linked proficiency-related modulations in the different ERP syntactic effects to specific fMRI activations indexing syntactic processing.
Adviser: Helen J. Neville
Rawls, Eric L. "Neural Mechanisms of Action Switching Moderate the Relationship Between Effortful Control and Aggression". ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2234.
Testo completoBalderston, Catherine C. "Recognition Memory for Emotional Words: An Event Related Potential Study". [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002510.
Testo completoSirianni, Lindsey. "Behavioral and Neural Correlates of Misses During Cued Recall". CSUSB ScholarWorks, 2019. https://scholarworks.lib.csusb.edu/etd/812.
Testo completoPolezzi, David. "Risk and Rationality: Decision-Making in the Brain". Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3425665.
Testo completoPrendere decisioni vantaggiose è un’ importante abilità. I modelli economici classici sostengono che le persone dovrebbero provare a massimizzare i loro guadagni e a ridurre le perdite, suggerendo un’idea di uomo perfettamente razionale (Homo Economicus). In pratica, le persone si comportano in maniera molto distante dalla razionalità. Usando i metodi delle neuroscienze, la presente tesi descriverà una serie di esperimenti che mettono in luce come aspetti non strettamente legati alla ricompensa monetaria influenzano le decisioni. L’esperimento 1 ha studiato l’attività cerebrale (con gli ERPs) durante un gioco rischioso, mostrando come gli esiti delle decisioni vengano valutati molto presto ( entro 250 msec) in termini di predicibilità e come questa valutazione sia cruciale per le decisioni successive. L’esperimento 2 impiega ancora gli ERPs, misurando la propensione al rischio attraverso i diversi contesti. I risultati hanno mostrato come la P300 rifletta i cambiamenti di propensione al rischio e le differenze personali. L’esperimento 3 ha indagato la presa di decisione in contesti sociali in cui le persone si comportano di solito in maniera irrazionale. L’attività cerebrale mostra un coinvolgimento delle teorie della mente in questo tipo di decisioni, suggerendo che un comportamento apparentemente irrazionale può essere logico alla luce dell’interazione sociale. L’esperimento 4 usa la fMRI per studiare le decisioni economiche in contesti sociali, mostrando come le offerte monetarie siano percepite come comunicazioni sociali piuttosto che come mere suddivisioni economiche. In generale, questi studi cercano di ridurre la distanza fra teorie formali e comportamento di scelta reale.
Sussmann, Antonio Gustavo. "Panorama dos sistemas ERPs nas médias empresas da cadeia de suprimentos das indústrias de autopeças de uma cidade do interior de São Paulo". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/12/12139/tde-12122006-152121/.
Testo completoThe main goal of this dissertation, is to demonstrate how are chosen, implanted and used the ERP systems for the small and medium companies of the supply chain auto parts industry from a city outside region of São Paulo; corresponding a combination of qualitative and quantitative research about ERP System implanted or in process of implementation; it was used a large bibliography that contain various topics related to ERP systems, 24 companies that are members of union were visited, to apply a questionnaire, allowing the identification of several characteristics of ERP systems in those companies, as the conclusion of this dissertation, observations were made related to the implementation, mainly about the difference of the reality in the small and medium companies related with the literature found, with the technological elements, human, management and general of the ERP System, also containing suggestions for following researches, as an example, the evolution of the ERP literature in three main subjects: Lifecycle of ERP Systems, the function to be developed in business context and the division of the literature in: Implementation, structure and complementary subjects of ERP Systems and models of ERP Systems. As the research follow the same direction of other researches, that do not consider the segment of the organization, it is allowed to use the results to other segments, only with the guarantee that the companies are small or medium size.
Poli, Eleonora. "Influence of empathy and psychopathic traits on emotional psychophysiological responses in women". Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424003.
Testo completoLa psicopatia viene tradizionalmente definita come un disturbo di personalità caratterizzato da due fattori principali: “Distacco Emotivo” e “Comportamento Antisociale”. Per quanto riguarda il primo fattore, i classici criteri diagnostici per la psicopatia includono mancanza di empatia, affettività superficiale, mancanza di senso di colpa o rimorso, ed egocentrismo. Per quanto riguarda il secondo fattore, individui con psicopatia presentano comportamento impulsivo senza riguardo per le conseguenze delle proprie azioni ed un’assenza di obiettivi a lungo termine, risposte perseverative, irresponsabilità, e comportamento antisociale e criminale (Hare, 1993). Cleckley (The Mask of Sanity, 1941) ha definito due categorie di psicopatici: “Successful” ed “Unsuccessful”. Gli psicopatici “Unsuccessful” manifestano il profilo tipico del disturbo, con distacco emotivo e devianza sociale. Presentano comportamenti violenti e criminali e scontano ripetute pene nelle carceri. Gli psicopatici “Successful” manifestano distacco emotivo, ma grazie ad un elevato quoziente intellettivo, e all’ambiente familiare e sociale, riescono a mantenere una parvenza di normalità e a tenersi lontani dai guai. Sono egocentrici, cospiratori, superficiali, e il loro comportamento, seppur non criminale o illegale, viola spesso le norme etiche e morali convenzionali. Negli scorsi anni sono stati condotti diversi studi nelle carceri e in ambienti giudiziari, con psicopatici “Unsuccessful” e criminali, portando ad un bias ambientale e a risultati scarsamente applicabili alla popolazione normale. È importante estendere questi studi a psicopatici “Successful” nelle comunità, in modo tale da poter esplorare analogie e differenze tra queste due categorie di psicopatici. Inoltre, la ricerca nelle carceri si è per lo più focalizzata su psicopatici maschi, a causa della prevalente presenza di persone di sesso maschile nelle carceri, da qui l’importanza di studiare la psicopatia al femminile e di approfondire l’eventuale presenza di differenze nella manifestazione della sindrome tra i due generi. Obiettivo principale del presente lavoro di tesi è stato quello di investigare la relazione tra regolazione emozionale e tratti empatici e psicopatici in donne “Successful” nella comunità. Nel primo studio è stata analizzata l’influenza di diversi livelli di empatia sulla valutazione soggettiva di immagini emozionali e sulle risposte emozionali psicofisiologiche (riflesso di startle, ERPs). I risultati hanno mostrato come differenti livelli di empatia avessero un’influenza sulla valutazione soggettiva di valenza ed arousal elicitati da immagini emozionali. Le partecipanti con bassi livelli di empatia valutavano le immagini negative come più piacevoli, e sia le immagini positive che quelle negative come meno attivanti, rispetto al gruppo con alti livelli di empatia, ad indicare una ridotta percepita attivazione corporea di fronte a stimoli emotigeni. Non sono state trovate differenze tra i due gruppi nelle risposte emozionali psicofisiologiche (startle reflex, ERPs). Nel secondo studio sono state analizzate differenze individuali nella valutazione soggettiva e nelle risposte affettive psicofisiologiche (startle reflex, ERPs) elicitate da immagini emozionali, in donne con bassi ed alti livelli di reattività di startle di base. I due gruppi (Low Responders vs. High Responders) non differivano nella loro valutazione soggettiva delle immagini, ma differivano nella modulazione affettiva del riflesso di startle: mentre le High Responders manifestavano un’inibizione del riflesso in risposta a stimoli piacevoli, ed un potenziamento della risposta in risposta a stimoli spiacevoli, le Low Responders non mostravano alcuna modulazione affettiva del riflesso in risposta ai vari stimoli emozionali. Inoltre, le Low Responders manifestavano ridotte risposte corticali durante la visione degli stimoli emozionali, rispetto alle High Responders. Obiettivo principale del terzo studio era quello di analizzare le capacità di decision-making e le risposte corticale misurate tramite ERPs in donne con elevati tratti di psicopatia ed un gruppo di controllo, tramite l’utilizzo dello Iowa Gambling Task. Le donne con elevati tratti di psicopatia manifestavano risposte perseverative durante il compito, una ridotta sensibilità alle punizioni, ed un’elevata sensibilità alle ricompense, rispetto al gruppo di controllo. Il quarto studio mirava ad esaminare l’associazione tra la concettualizzazione triarchica della psicopatia (secondo la quale la sindrome può essere analizzata secondo i tre concetti di boldness, meanness, e disinhibition) , misurata tramite la Triarchic Psychopathy Measure, ed il construtto narcisistico, misurato tramite il Narcissistic Personality Inventory, in studenti universitari. Diversi tratti narcisistici hanno mostrato di essere associati a specifiche configurazioni di tratti psicopatici. Il Narcissistic Personality Inventory ha mostrato di catturare sia gli aspetti “grandiosi” sia quelli “vulnerabili” del disturbo. In conclusione, i primi tre studi hanno evidenziato come donne con bassi livelli di empatia ed elevati tratti di psicopatia mostrino deficit nella regolazione emozionale e nel decision-making. Tali deficit possono avere rilevanti conseguenze negative, sia fisiche che morali, sugli individui e sulla società nel suo insieme. Il quarto studio ha fornito una migliore comprensione della relazione tra psicopatia e narcisismo.