Tesis sobre el tema "Face emotion recognition"
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Bate, Sarah. "The role of emotion in face recognition". Thesis, University of Exeter, 2008. http://hdl.handle.net/10036/51993.
Texto completoTomlinson, Eleanor Katharine. "Face-processing and emotion recognition in schizophrenia". Thesis, University of Birmingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433700.
Texto completoKuhn, Lisa Katharina. "Emotion recognition in the human face and voice". Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/11216.
Texto completoDurrani, Sophia J. "Studies of emotion recognition from multiple communication channels". Thesis, University of St Andrews, 2005. http://hdl.handle.net/10023/13140.
Texto completoAlashkar, Taleb. "3D dynamic facial sequences analysis for face recognition and emotion detection". Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10109/document.
Texto completoIn this thesis, we have investigated the problems of identity recognition and emotion detection from facial 3D shapes animations (called 4D faces). In particular, we have studied the role of facial (shapes) dynamics in revealing the human identity and their exhibited spontaneous emotion. To this end, we have adopted a comprehensive geometric framework for the purpose of analyzing 3D faces and their dynamics across time. That is, a sequence of 3D faces is first split to an indexed collection of short-term sub-sequences that are represented as matrix (subspace) which define a special matrix manifold called, Grassmann manifold (set of k-dimensional linear subspaces). The geometry of the underlying space is used to effectively compare the 3D sub-sequences, compute statistical summaries (e.g. sample mean, etc.) and quantify densely the divergence between subspaces. Two different representations have been proposed to address the problems of face recognition and emotion detection. They are respectively (1) a dictionary (of subspaces) representation associated to Dictionary Learning and Sparse Coding techniques and (2) a time-parameterized curve (trajectory) representation on the underlying space associated with the Structured-Output SVM classifier for early emotion detection. Experimental evaluations conducted on publicly available BU-4DFE, BU4D-Spontaneous and Cam3D Kinect datasets illustrate the effectiveness of these representations and the algorithmic solutions for identity recognition and emotion detection proposed in this thesis
Bui, Kim-Kim. "Face Processing in Schizophrenia : Deficit in Face Perception or in Recognition of Facial Emotions?" Thesis, University of Skövde, School of Humanities and Informatics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-3349.
Texto completoSchizophrenia is a psychiatric disorder characterized by social dysfunction. People with schizophrenia misinterpret social information and it is suggested that this difficulty may result from visual processing deficits. As faces are one of the most important sources of social information it is hypothesized that people suffering from the disorder have impairments in the visual face processing system. It is unclear which mechanism of the face processing system is impaired but two types of deficits are most often proposed: a deficit in face perception in general (i.e., processing of facial features as such) and a deficit in facial emotion processing (i.e., recognition of emotional facial expressions). Due to the contradictory evidence from behavioural, electrophysiological as well as neuroimaging studies offering support for the involvement of one or the other deficit in schizophrenia it is early to make any conclusive statements as to the nature and level of impairment. Further studies are needed for a better understanding of the key mechanism and abnormalities underlying social dysfunction in schizophrenia.
Bellegarde, Lucille Gabrielle Anna. "Perception of emotions in small ruminants". Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25915.
Texto completoChiller-Glaus, Sarah. "Testing the limits of face recognition : identification from photographs in travel documents and dynamic aspects of emotion recognition /". [S.l.] : [s.n.], 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000281129.
Texto completoMerz, Sabine Psychology Faculty of Science UNSW. "Face emotion recognition in children and adolescents; effects of puberty and callous unemotional traits in a community sample". Publisher:University of New South Wales. Psychology, 2008. http://handle.unsw.edu.au/1959.4/41247.
Texto completoBloom, Elana. "Recognition, expression, and understanding facial expressions of emotion in adolescents with nonverbal and general learning disabilities". Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100323.
Texto completoAdolescents aged 12 to 15 were screened for LD and NLD using the Wechsler Intelligence Scale for Children---Third Edition (WISC-III; Weschler, 1991) and the Wide Range Achievement Test---Third Edition (WRAT3; Wilkinson, 1993) and subtyped into NVLD and GLD groups based on the WRAT3. The NVLD ( n = 23), matched NLD (n = 23), and a comparable GLD (n = 23) group completed attention, mood, and neuropsychological measures. The adolescent's ability to recognize (Pictures of Facial Affect; Ekman & Friesen, 1976), express, and understand facial expressions of emotion, and their general social functioning was assessed. Results indicated that the GLD group was significantly less accurate at recognizing and understanding facial expressions of emotion compared to the NVLD and NLD groups, who did not differ from each other. No differences emerged between the NVLD, NLD, and GLD groups on the expression or social functioning tasks. The neuropsychological measures did not account for a significant portion of the variance on the emotion tasks. Implications regarding severity of LD are discussed.
St-Hilaire, Annie. "Are paranoid schizophrenia patients really more accurate than other people at recognizing spontaneous expressions of negative emotion? : a study of the putative association between emotion recognition and thinking errors in paranoia". [Kent, Ohio] : Kent State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1215450307.
Texto completoTitle from PDF t.p. (viewed Nov. 10, 2009). Advisor: Nancy Docherty. Keywords: schizophrenia, paranoia, emotion recognition, posed expressions, spontaneous expressions, cognition. Includes bibliographical references (p. 122-144).
Shreve, Matthew Adam. "Automatic Macro- and Micro-Facial Expression Spotting and Applications". Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4770.
Texto completoStein, Jan-Philipp y Peter Ohler. "Saving Face in Front of the Computer? Culture and Attributions of Human Likeness Influence Users' Experience of Automatic Facial Emotion Recognition". Frontiers Media S.A, 2018. https://monarch.qucosa.de/id/qucosa%3A31524.
Texto completoLausen, Adi [Verfasser], Annekathrin [Akademischer Betreuer] Schacht, Annekathrin [Gutachter] Schacht y Kurt [Gutachter] Hammerschmidt. "Emotion recognition from expressions in voice and face – Behavioral and Endocrinological evidence – / Adi Lausen ; Gutachter: Annekathrin Schacht, Kurt Hammerschmidt ; Betreuer: Annekathrin Schacht". Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1188464817/34.
Texto completoBezerra, Giuliana Silva. "A framework for investigating the use of face features to identify spontaneous emotions". Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19595.
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Emotion-based analysis has raised a lot of interest, particularly in areas such as forensics, medicine, music, psychology, and human-machine interface. Following this trend, the use of facial analysis (either automatic or human-based) is the most common subject to be investigated once this type of data can easily be collected and is well accepted in the literature as a metric for inference of emotional states. Despite this popularity, due to several constraints found in real world scenarios (e.g. lightning, complex backgrounds, facial hair and so on), automatically obtaining affective information from face accurately is a very challenging accomplishment. This work presents a framework which aims to analyse emotional experiences through naturally generated facial expressions. Our main contribution is a new 4-dimensional model to describe emotional experiences in terms of appraisal, facial expressions, mood, and subjective experiences. In addition, we present an experiment using a new protocol proposed to obtain spontaneous emotional reactions. The results have suggested that the initial emotional state described by the participants of the experiment was different from that described after the exposure to the eliciting stimulus, thus showing that the used stimuli were capable of inducing the expected emotional states in most individuals. Moreover, our results pointed out that spontaneous facial reactions to emotions are very different from those in prototypic expressions due to the lack of expressiveness in the latter.
Emotion-based analysis has raised a lot of interest, particularly in areas such as forensics, medicine, music, psychology, and human-machine interface. Following this trend, the use of facial analysis (either automatic or human-based) is the most common subject to be investigated once this type of data can easily be collected and is well accepted in the literature as a metric for inference of emotional states. Despite this popularity, due to several constraints found in real world scenarios (e.g. lightning, complex backgrounds, facial hair and so on), automatically obtaining affective information from face accurately is a very challenging accomplishment. This work presents a framework which aims to analyse emotional experiences through naturally generated facial expressions. Our main contribution is a new 4-dimensional model to describe emotional experiences in terms of appraisal, facial expressions, mood, and subjective experiences. In addition, we present an experiment using a new protocol proposed to obtain spontaneous emotional reactions. The results have suggested that the initial emotional state described by the participants of the experiment was different from that described after the exposure to the eliciting stimulus, thus showing that the used stimuli were capable of inducing the expected emotional states in most individuals. Moreover, our results pointed out that spontaneous facial reactions to emotions are very different from those in prototypic expressions due to the lack of expressiveness in the latter.
Ruivo, João Pedro Prospero. "Um modelo para inferência do estado emocional baseado em superfícies emocionais dinâmicas planares". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-28022018-110833/.
Texto completoEmotions have direct influence on the human life and are of great importance in relationships and in the way interactions between individuals develop. Because of this, they are also important for the development of human-machine interfaces that aim to maintain natural and friendly interactions with its users. In the development of social robots, which this work aims for, a suitable interpretation of the emotional state of the person interacting with the social robot is indispensable. The focus of this work is the development of a mathematical model for recognizing emotional facial expressions in a sequence of frames. Firstly, a face tracker algorithm is used to find and keep track of a human face in images; then relevant information is extracted from this face and fed into the emotional state recognition model developed in this work, which consists of an instantaneous emotional expression classifier, a Kalman filter and a dynamic classifier, which gives the final output of the model. The model is optimized via a simulated annealing algorithm and is experimented on relevant datasets, having its performance measured for each of the considered emotional states.
Schacht, Annekathrin. "Emotions in visual word processing". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2008. http://dx.doi.org/10.18452/15727.
Texto completoIn recent cognitive and neuroscientific research the influences of emotion on information processing are of special interest. As has been shown in several studies on affective picture as well as facial emotional expression processing, emotional stimuli tend to involuntarily draw attentional resources and preferential and sustained processing, possibly caused by their high intrinsic relevance. However, evidence for emotion effects in visual word processing is scant and heterogeneous. As yet, little is known about at which stage and under what conditions the specific emotional content of a word is activated. A series of experiments which will be summarized and discussed in the following section aimed to localize the effects of emotion in visual word processing by recording event-related potentials (ERPs). Distinct effects of emotional valence on ERPs were found which were distinguishable with regard to their temporal and spatial distribution and might be therefore related to different stages within the processing stream. As a main result, the present findings indicate that the activation of emotional valence of verbs occurs on a (post-) lexical stage. The underlying neural mechanisms of this early registration appear to be domain-unspecific, and further, largely independent of processing resources and task demands. On later stages, emotional processes are modulated by several different factors. Further, the findings of an acceleration of early but not late emotion effects caused by neutral context information as well as by domain-specifity indicate a flexible dynamic of emotional processes which would be hard to account for by strictly serial processing models.
Löfdahl, Tomas y Mattias Wretman. "Långsammare igenkänning av emotioner i ansiktsuttryck hos individer med utmattningssyndrom : En pilotstudie". Thesis, Mittuniversitetet, Institutionen för samhällsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-17590.
Texto completoJulin, Fredrik. "Vision based facial emotion detection using deep convolutional neural networks". Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-42622.
Texto completoWild-Wall, Nele. "Is there an interaction between facial expression and facial familiarity?" Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2004. http://dx.doi.org/10.18452/15042.
Texto completoContrasting traditional face recognition models previous research has revealed that the recognition of facial expressions and familiarity may not be independent. This dissertation attempts to localize this interaction within the information processing system by means of performance data and event-related potentials. Part I elucidated upon the question of whether there is an interaction between facial familiarity and the discrimination of facial expression. Participants had to discriminate two expressions which were displayed on familiar and unfamiliar faces. The discrimination was faster and less error prone for personally familiar faces displaying happiness. Results revealed a shorter peak latency for the P300 component (trend), reflecting stimulus categorization time, and for the onset of the lateralized readiness potential (S-LRP), reflecting the duration of pre-motor processes. A facilitation of perceptual stimulus categotization for personally familiar faces displaying happiness is suggested. The discrimination of expressions was not facilitated in further experiments using famous or experimentally familiarized, and unfamiliar faces. Part II raises the question of whether there is an interaction between facial expression and the discrimination of facial familiarity. In this task a facilitation was only observable for personally familiar faces displaying a neutral or happy expression, but not for experimentally familiarized, or unfamiliar faces. Event-related potentials reveal a shorter S-LRP interval for personally familiar faces, hence, suggesting a facilitated response selection stage. In summary, the results suggest that an interaction of facial familiarity and facial expression might be possible under some circumstances. Finally, the results are discussed in the context of possible interpretations, previous results, and face recognition models.
Alves, Cláudia Daniela Andrade Carvalho. "Transplantação da Face Humana: estudo de caso com Carmen Tarleton - efeitos neuropsicofisiológicos na exibição e no reconhecimento das emoções básicas". Doctoral thesis, [s.n.], 2015. http://hdl.handle.net/10284/5201.
Texto completoO transplante da face é um procedimento considerado experimental que originou intenso debate sobre os riscos e os benefícios de realizar este tipo de cirurgia. Os resultados mostram que, a partir de um ponto de vista clínico, técnico, estético, funcional, imunológico e psicológico, o transplante facial alcançou a reabilitação funcional, estética, social e psicológica em pacientes com desfiguração severa da face, e encontram-se descritos em publicações de equipas de transplante de todo o mundo. A experiência clínica demonstrou a viabilidade do transplante facial como uma valiosa opção de reconstrução, mas ainda continua a ser considerada como um procedimento experimental com questões não resolvidas por esclarecer. Os resultados funcionais e estéticos têm sido muito encorajadores, com boa recuperação motora e sensorial e melhorias para as funções faciais observadas. Como previsto, têm sido comuns episódios de rejeição aguda, mas facilmente controlados com o aumento da imunossupressão sistémica. Complicações de mortalidade e imunossupressão nos pacientes também foram observadas. As melhorias psicológicas têm sido notáveis e resultaram na reintegração dos pacientes para o mundo exterior, redes sociais e até mesmo no local de trabalho. As equipas de transplante facial têm destacado a seleção rigorosa dos pacientes como o indicador chave do sucesso. Os primeiros resultados globais do programa de transplante da face têm sido geralmente mais positivos do que o expectável. Este sucesso inicial, a divulgação de resultados e o refinamento contínuo do procedimento podem possibilitar que o transplante facial seja, futuramente, uma opção primordial de reconstrução para aqueles com extensas deformações faciais. Assim, é de suma importância compreender o processo neuropsicofisiológico na exibição e no reconhecimento das emoções básicas após o transplante da face. Os resultados obtidos indicam que lesões músculo-esqueléticas na face afetam a capacidade de exibição da expressão da emocionalidade e, por consequência, dificultam o reconhecimento da mesma pelos outros, prejudicando a eficácia da comunicação. Este estudo pretende contribuir para o desenvolvimento da investigação científica sobre a expressão facial da emoção, aplicável em contexto pioneiro e único em Portugal, como é o caso do transplante facial.
Face transplant is considered an experimental procedure that gave rise to intense debate about the risks and benefits of performing this type of surgery. The results show that, from a clinical technical, aesthetic, functional, immunological and psychological point of view, face transplant has reached functional, aesthetic, social and psychological rehabilitation in patients with severe disfiguration of the face, and are described in publications of transplant teams all over the world. Clinical experience demonstrates the feasibility of the face transplant as a valuable reconstruction option, yet is still considered as an experimental procedure with issues unresolved unclear. The functional and aesthetic results have been very encouraging, with good motor and sensory recovery and improvements to facial features observed. As expected, it has been common acute rejection, but easily controlled with increased systemic immunosuppression. Mortality and complications of immunosuppression in patients were also observed. Psychological improvements have been remarkable and resulted in reintegration of patients to the outside world, social networks and even in the workplace. Face transplant teams have highlighted the rigorous selection of patients as the key indicator of success. The first global results of face transplant program have been generally more positive than expected. This initial success, the dissemination of results and the ongoing refinement of the procedure may enable the facial transplant to be in future, a major reconstruction option for those with extensive facial deformities. Thus, it is of paramount importance to understand the neuropsychophysiological process in the display and recognition of basic emotions after transplantation of the face. The results indicate that musculoskeletal injuries on the face affect the display capacity of the emotionality expression and therefore hindering the recognition of the same for others, undermining the effectiveness of communication. This study aims to contribute to the development of scientific research on the facial expression of emotion, applicable in pioneering and unique context in Portugal, such as the face transplant.
La greffe du visage est considéré comme procédure expérimentale qui a suscité un intense débat sur les risques et les avantages de l'exécution de ce type de chirurgie. Les résultats montrent que, d'un point de vue clinique, technique, esthétique, fonctionnel, immunologique et psychologique de la greffe du visage a pris la réadaptation fonctionnelle, esthétique, psychologique et social chez les patients atteints souffrant de grave défigurement du visage, et sont décrits dans les publications de les équipes de transplantation du monde entier. L'expérience clinique démontre la faisabilité de la greffe comme une option valable de reconstruction faciale, mais toujours considéré comme une procédure expérimentale avec des problèmes non résolus. Les résultats fonctionnels et esthétiques ont été très encourageants, avec une bonne récupération moteur et sensorielle et l'amélioration caractéristiques faciales observées. Comme prévu, il a été le rejet aigu communs, mais facilement contrôlé avec une augmentation d'immunosuppression systémique. La mortalité et les complications de l'immunosuppression chez les patients atteints ont également été observées. Améliorations psychologiques ont été remarquables et ont abouti à la réintégration des patients vers le monde extérieur, les réseaux sociaux et même dans le lieu de travail. Les équipes de transplantation du visage ont mis en évidence la sélection rigoureuse des patients comme l'indicateur clé du succès. Les première résultat du programme mondial de la greffe du visage ont été généralement plus positive que prévu. Ce succès initial, la diffusion des résultats et de l'amélioration permanente de la procédure peut permettre à la greffe du visage être, avenir, une majeure option de reconstruction pour ceux qui ont de vastes malformations faciales. Ainsi, il est d'une importance primordiale pour comprendre le neuropsychophysiologique processus dans l'affichage et la reconnaissance des émotions de base après la transplantation du visage. Les résultats indiquent que les lésions musculo-squelettiques sur le visage affectent la capacité d'affichage de l'expression de la émotionnalité et donc difficile à reconnaître le même pour les autres, compromettre l'efficacité de la communication. Cette étude vise à contribuer au développement de la recherche scientifique sur l'expression du visage de l'émotion, applicable dans un contexte pionnier et unique au Portugal, comme la greffe de visage.
Coelho-Moreira, Ana Cristina Gonçalves. "As falas da face: processo Casa Pia - aplicação da análise da expressão facial à luz do Direito Penal Português". Doctoral thesis, [s.n.], 2015. http://hdl.handle.net/10284/4950.
Texto completoO Processo Casa Pia (PrCP) teve um impacto avassalador na sociedade portuguesa, escrutinando publicamente as instituições estatais que acolhiam crianças. As repercussões foram de tal forma intensas que não só foram alteradas as metodologias e as concepções de protecção do Estado a crianças desfavorecidas como o próprio código penal foi alterado como consequência directa das suas implicações. A emoção e a sua expressão facial desempenham um papel fundamental no desenvolvimento do indivíduo e da sua interacção com a sociedade. O estudo da expressão facial da emoção de alguns alguns dos intervenientes do PrCP, procurou encontrar respostas sobre a manifestação e a exibição na face da culpa e sobre o seu processamento ao nível neuropsicológico. O conceito de culpa no âmbito da expressão facial da emoção, ainda que hoje objecto de aceso debate no seio da comunidade científico é, à luz do direito penal um dos principais instrumentos utilizados para apurar a censurabilidade dos agentes e das suas acções. Ainda que a culpa seja considerada pelo direito penal como algo intrínseco ao agente e às suas acções, seja ela dolosa ou apenas negligente, o seu apuramento permite ao direito penal sustentar e aplicar uma sanção, promovendo a dissuasão de comportamentos idênticos, mantendo, assim a paz, a ordem social, e o respeito pelas instituições e agentes representativos do Estado. Assim, combinando o objectivo último do direito penal e o contributo da análise de expressão facial em contexto forense, foi elaborado um estudo de caso, por recurso metodologia qualitativa comparativa. O principal objectivo foi, procurando resposta às hipóteses colocadas, desenvolver matrizes de análise e medição da culpa, dados os diferentes tipos e níveis de influência que a mesma exerce nos processos de adaptação dos indivíduos à sociedade e às circunstâncias. Os resultado obtidos indicam e sustentam a evidência de uma configuração específica de Au’s na Upper Face e associadas à manifestação na face de culpa, independentemente das circunstâncias (negação ou assunção) que a provocam. Desta feita, o presente estudo poderá representar o início de um necessária colaboração entre a aplicação da análise da expressão facial da emoção e a aplicação do direito em todas as suas vertentes e instituições uma vez que reforça a aplicação do princípio da culpa e , por consequência, as suas dimensões jurídico-penal e ética. The Casa Pia sexual child abuse scandal had a devastating impact on Portuguese society, publicly scrutinizing the state institutions that sheltered children. The repercussions were so intense that, not only the methodologies and state protection concepts for disadvantaged children have changed, but also the criminal law was changed as a direct result of its implications. The emotion and there facial expression plays a key role in the development of the individual and their interaction with society. The study of facial expression of emotion of some of the players of PrCP, sought to find answers on demonstration and display on the face of guilt and the processing at a neurological and psychological level. The concept of guilt within the facial expression of emotion, although today the subject of heated debate within the scientific community is in the light of criminal law one of the main instruments used to determine the reprehensibility of agents and their actions. Although the guilt is considered by criminal law as something intrinsic to the agent and their actions, whether intentional or just negligent, its establishment allows the criminal law uphold and apply a sanction, promoting deterrence identical behaviors, thus maintaining the peace, social order, and respect for state institutions and representative agents. Thus, combining the ultimate goal of criminal law and the contribution of analysis facial expression of emotion in forensic context, a case study was elaborated with a qualitative methodology by comparison. The main objective was looking for answers to the hypotheses, develop patterns of analysis and measurement of guilt, given the different types and levels of influence which it exerts on the processes of adaptation of the individual to society and circumstances. The results obtained indicate and support the evidence of a specific configuration of Au's, in Upper Face associated with the expression on the face of guilt, regardless of the circumstances (denial or assumption) that underlie it. Therefore, the present study may represent the beginning of a close collaboration between the application of analysis of facial expression of emotion and the application of law in all its aspects and institutions, as it strengthens the principle of guilt and therefore its dimensions legal, criminal and ethics. Le Casa Pia enfant scandale des abus sexuelles a eu un impact dévastateur sur la société portugaise, scrutant publiquement institutions de l'Etat qui ont accueilli les enfants. Les répercussions étaient si intenses donc, ne ont pas seulement changé les méthodes et concepts de protection de l'État pour les enfants défavorisés, comme le droit pénal a été modifié en conséquence directe de ses implications. L'emotion et sa expression faciale joue un rôle clé dans le développement de l'individu et de leur interaction avec la société. L'étude de l'expression du face de l'émotion de quelques uns des acteurs de PrCP, a cherché à trouver des réponses sur la démonstration et l’exposition sur le face de la culpabilité et le traitement de niveau neurologique et psychologique. Le concept de culpabilité dans l'expression du visage de l'émotion, même si aujourd'hui l'un vif débat au sein de la communauté scientifique est à la lumière du droit pénal l'un des principaux instruments utilisés pour déterminer le caractère répréhensible d'agents et de leurs actions. Bien que la faute est considérée par la loi pénale comme quelque chose d'intrinsèque à l'agent et leurs actions, qu'elles soient intentionnelles ou tout simplement preuve de négligence, sa clairance permet la loi pénale faire respecter et d'appliquer une sanction, la promotion de la dissuasion des comportements identiques, maintenant ainsi la la paix, l'ordre social, et le respect des institutions de l'Etat et des agents représentatifs. Ainsi, en combinant le but ultime du droit pénal et de la contribution des expressions analyse facias dans le contexte médico-légale, une étude de cas a été préparé avec une méthodologie qualitative par comparaison. L'objectif principal a été la recherche de réponses aux hypothèses, élaborer des tableaux d'analyse et de mesure de la culpabilité, étant donné les différents types et niveaux d'influence qu'il exerce sur les processus d'adaptation de l'individu à la société et les circonstances. Les résultats obtenus indiquent et soutiennent la preuve d'une configuration spécifique de Au son, Upper Face associée à l'expression sur la face de culpabilité, quelles que soient les circonstances (négation ou la véracité) qui la sous-tendent. Cette fois, la présente étude peut représenter le début d'une étroite collaboration entre l’application de l'analyse de l'expression facial de l'émotion et de l'application du droit dans tous ses aspects et les institutions, car il renforce le principe de la culpabilité et donc ses dimensions juridique, pénale et de l’éthique.
ALTIERI, ALEX. "Yacht experience, ricerca e sviluppo di soluzioni basate su intelligenza artificiale per il comfort e la sicurezza in alto mare". Doctoral thesis, Università Politecnica delle Marche, 2021. http://hdl.handle.net/11566/287605.
Texto completoThe thesis describes the results of the research and development of new technologies based on artificial intelligence techniques, able to achieve an empathic interaction and an emotional connection between man and "the machines" in order to improve comfort and safety on board of yachts. This interaction is achieved through the recognition of emotions and behaviors and the following activation of all those multimedia devices available in the environment on board, which are adapted to the mood of the subject inside the room. The prototype system developed during the three years of PhD is now able to manage multimedia content (e.g. music tracks, videos played on LED screens) and light scenarios, based on the user's emotion, recognized by facial expressions taken from any camera installed inside the space. In order to make the interaction adaptive, the developed system implements Deep Learning algorithms to recognize the identity of the users on board (Facial Recognition), the degree of attention of the commander (Gaze Detection and Drowsiness) and the objects with which he interacts (phone, earphones, etc.). This information is processed within the system to identify any situations of risk to the safety of people on board and to monitor the entire environment. The application of these technologies, in this domain that is always open to the introduction of the latest innovations on board, opens up several research challenges.
Najafi, Modjtaba. "L’espace public solidaire face aux séismes de Bam et d’Azerbaïdjan en 2003 et en 2012 : de l’Iran civil à l’Iran des réseaux". Thesis, Paris 3, 2019. http://www.theses.fr/2019PA030040.
Texto completoStudying the constitution of a united public during the earthquakes of Bam and Azerbaijan is the subject of this research. It tackles the issue with a pragmatist approach to show how techno-demographic and politico-social developments in the 2000s fostered the raising of the Iranian public during the earthquakes of Bam in 2003 and that of Azerbaijan in 2012.From this observation, this research aims at studying the contribution of citizen Internet users on the blogs and on the social networks, which allowed the gathering of the Iranians who made the investigation to check a problematic situation starting from the effects of the earthquakes to reach their causes.This thesis also analyses the media coverage of the Iranian press, either conservative or reformist, to discover the various aspects of these events.Based on discourse analysis, this research shows how the Iranian public sphere is closer to pragmatist approach and further away from Habermasian approach. According to the pragmatist approach, emotion is unifying and driving the individuals, it is conceived as a factor of unity and completeness in the experience. The emotions shared by the different actors of these events contributed to the creation of a We, brought together by a central objective. We see an emotional argument, characterized by the massive use of testimonies and stories, poems, metaphors and metonymies and images in a politico-social discourse. This study shows how indignant and shocked citizens gathered for the reconstruction of Iran.From this thesis work, arises the new image of contemporary Iran: civil Iran and networked Iran. The first is characterized by the emergence of a new civil society appeared particularly in the late 1990s and early 2000s and the second is distinguished by the expansion of the public sphere through the development of the internet including social networks
Riley, Helen. "Maternal attachment and recognition of infant emotion". Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/16569.
Texto completoBeer, Jenay Michelle. "Recognizing facial expression of virtual agents, synthetic faces, and human faces: the effects of age and character type on emotion recognition". Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33984.
Texto completoOstmeyer-Kountzman, Katrina. "Emotion Recognition of Dynamic Faces in Children with Autism Spectrum Disorder". Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32771.
Texto completo
[revised ETD per Dean DePauw 10/25/12 GMc]
Master of Science
Kaltwasser, Laura. "Influence of interpersonal abilities on social decisions and their physiological correlates". Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17435.
Texto completoThe concept of interpersonal abilities refers to performance measures of social cognition such as the abilities to perceive and remember faces and the abilities to recognize and express emotions. The aim of this dissertation was to examine the influence of interpersonal abilities on social decisions. A particular focus lay on the quantification of individual differences in brain-behavior relationships associated with processing interpersonally relevant stimuli. Study 1 added to existing evidence on brain-behavior relationships, specifically between psychometric constructs of face cognition and event-related potentials associated with different stages of face processing (encoding, perception, and memory) in a familiarity decision. Our findings confirm a substantial relationship between the N170 latency and the early-repetition effect (ERE) amplitude with three established face cognition ability factors. The shorter the N170 latency and the more pronounced the ERE amplitude, the better is the performance in face perception and memory and the faster is the speed of face cognition. Study 2 found that the ability to recognize fearful faces as well as the general spontaneous expressiveness during social interaction are linked to prosocial choices in several socio-economic games. Sensitivity to the distress of others and spontaneous expressiveness foster reciprocal interactions with prosocial others. Study 3 confirmed the model of strong reciprocity in that prosociality drives negative reciprocity in the ultimatum game. Using multilevel structural equation modeling in order to estimate brain-behavior relationships of fairness preferences, we found strong reciprocators to show more pronounced relative feedback-negativity amplitude in response to the faces of bargaining partners. Thus, the results of this dissertation suggest that established individual differences in behavioral measures of interpersonal ability are partly due to individual differences in brain mechanisms.
Mainsant, Marion. "Apprentissage continu sous divers scénarios d'arrivée de données : vers des applications robustes et éthiques de l'apprentissage profond". Electronic Thesis or Diss., Université Grenoble Alpes, 2023. http://www.theses.fr/2023GRALS045.
Texto completoThe human brain continuously receives information from external stimuli. It then has the ability to adapt to new knowledge while retaining past events. Nowadays, more and more artificial intelligence algorithms aim to learn knowledge in the same way as a human being. They therefore have to be able to adapt to a large variety of data arriving sequentially and available over a limited period of time. However, when a deep learning algorithm learns new data, the knowledge contained in the neural network overlaps old one and the majority of the past information is lost, a phenomenon referred in the literature as catastrophic forgetting. Numerous methods have been proposed to overcome this issue, but as they were focused on providing the best performance, studies have moved away from real-life applications where algorithms need to adapt to changing environments and perform, no matter the type of data arrival. In addition, most of the best state of the art methods are replay methods which retain a small memory of the past and consequently do not preserve data privacy.In this thesis, we propose to explore data arrival scenarios existing in the literature, with the aim of applying them to facial emotion recognition, which is essential for human-robot interactions. To this end, we present Dream Net - Data-Free, a privacy preserving algorithm, able to adapt to a large number of data arrival scenarios without storing any past samples. After demonstrating the robustness of this algorithm compared to existing state-of-the-art methods on standard computer vision databases (Mnist, Cifar-10, Cifar-100 and Imagenet-100), we show that it can also adapt to more complex facial emotion recognition databases. We then propose to embed the algorithm on a Nvidia Jetson nano card creating a demonstrator able to learn and predict emotions in real-time. Finally, we discuss the relevance of our approach for bias mitigation in artificial intelligence, opening up perspectives towards a more ethical AI
Debladis, Jimmy. "Traitement des signaux de communication dans le syndrome de Prader-Willi : aspects descriptifs, analytiques et évolutifs". Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30036.
Texto completoPrader-Willi syndrome (PWS) is a rare genetic syndrome affecting around 1 in 20,000 births in France. The two most frequent genetic origins are either a deletion in the 15q11q12 region on the paternal chromosome 15 or maternal uniparental disomy. This syndrome is easily identified through hypotonia and feeding difficulties observed at birth; then marked by hyperphagia, a constant sensation of hunger and behavioural difficulties that appear in time. From a social point of view, these patients present with atypical social interactions, similar to those reported in autism spectrum disorder (ASD). In PWS, very little research has been done concerning the behavioural and social interaction difficulties observed. Previous research has shown that these patients have deficits in recognizing emotions as well as atypical cortical signatures in response to faces. Nonetheless, an unexplored gap remains regarding how social signals are treated and analyzed. This thesis brings new data on potentially altered vocal and facial treatment processes in PWS. We developed a completed battery of behavioural tests aiming to study how voices and faces are processed. We demonstrated that patients with PWS have slower motor and perceptive skills. Furthermore, we identified a facial processing deficit that is not present for voiced. We suggest that the facial processing deficits observed could originate from a global perception deficit and the unification of several sources of information, thereby relating to the central coherence. Finally, we showed that patients with a materal disomy suffered from more severe social interaction difficulties than patients presenting with a deletion. Additionally, a therapeutic axis will be developed with the administration of oxytocin in children and adults with PWS. Oxytocin, over these past few years, has gained renewed interest for individuals with social interaction deficits. This therapeutic axis will allow us to study the long-term effects of oxytocin on children and the potential benefits of a treatment on the social and feeding behaviours
Shostak, Lisa. "Social information processing, emotional face recognition and emotional response style in offending and non-offending adolescents". Thesis, King's College London (University of London), 2007. https://kclpure.kcl.ac.uk/portal/en/theses/social-information-processing-emotional-face-recognition-and-emotional-response-style-in-offending-and-nonoffending-adolescents(15ff1b2d-1e52-46b7-be1a-736098263ce1).html.
Texto completoWei, Xiaozhou. "3D facial expression modeling and analysis with topographic information". Diss., Online access via UMI:, 2008.
Buscar texto completoMaas, Casey. "Decoding Faces: The Contribution of Self-Expressiveness Level and Mimicry Processes to Emotional Understanding". Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/scripps_theses/406.
Texto completoBeall, Paula M. "Automaticity and Hemispheric Specialization in Emotional Expression Recognition: Examined using a modified Stroop Task". Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3267/.
Texto completoSun, Luning. "Using the Ekman 60 faces test to detect emotion recognition deficit in brain injury patients". Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708553.
Texto completoSergerie, Karine. "A face to remember : an fMRI study of the effects of emotional expression on recognition memory". Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82422.
Texto completoBRENNA, VIOLA. "Positive and negative facial emotional expressions: the effect on infants' and children's facial identity recognition". Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/46845.
Texto completoNeto, Wolme Cardoso Alves. "Efeitos do escitalopram sobre a identificação de expressões faciais". Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/17/17148/tde-25032009-210215/.
Texto completoALVES NETO, W.C. Effects of escitalopram on the processing of emotional faces. Ribeirão Preto, SP: Faculty of Medicine of Ribeirão Preto, University of São Paulo; 2008. The selective serotonin reuptake inhibitors (SSRI) have been used successfully for the treatment of various psychiatry disorders. The SSRI clinical efficacy is attributed to an enhancement of the serotonergic neurotransmission, but little is known about the neuropsychological mechanisms underlying this process. Several evidences suggest that serotonin is involved with the regulation of social behavior, learning and memory process and emotional processing. The recognition of basic emotions on facial expressions represents an useful task to study the emotional processing, since they are a condensate, uniform and important stimuli for social functioning. The aim of the study was to verify the effects of the SSRI escitalopram on the recognition of facial emotional expressions. Twelve healthy males completed two experimental sessions each (crossover design), in a randomized, balanced order, double-blind design. An oral dose of 10 mg of escitalopram was administered 3 hours before they performed an emotion recognition task with six basic emotions angry, fear, sadness, disgust, happiness and surprise and neutral expression. The faces were digitally morphed between 10% and 100% of each emotional standard, creating a 10% steps gradient. The subjective mood and anxiety states through the task were recorded and the performance through the task was defined by the accuracy measure (number of correct answers divided by the total of stimuli presented). In general, except of fear, escitalopram interfered with all the emotions tested. Specifically, facilitated the recognition of sadness, while impaired the identification of happiness. When the gender of the faces was analyzed, this effect was seen in male, but not female faces, where it improves the recognition of happiness. In addition, improves the recognition of angry and disgusted faces when administered at the second session and impaired the identification of surprised faces at intermediate levels of intensity. It also showed a global positive effect on task performance when administered at the second session. The results indicate a serotonergic modulation on the recognition of emotional faces and the recall of previous learned items.
Ali, Afiya. "Recognition of facial affect in individuals scoring high and low in psychopathic personality characteristics". The University of Waikato, 2007. http://adt.waikato.ac.nz/public/adt-uow20070129.190938/index.html.
Texto completoMarshall, Amy D. "Violent husbands' recognition of emotional expressions among the faces of strangers and their wives". [Bloomington, Ind.] : Indiana University, 2004. http://wwwlib.umi.com/dissertations/fullcit/3162247.
Texto completoTitle from PDF t.p. (viewed Dec. 1, 2008). Source: Dissertation Abstracts International, Volume: 66-01, Section: B, page: 0564. Chair: Amy Holtzworth-Munroe.
Gracioso, Ana Carolina Nicolosi da Rocha. "Avaliação da influência de emoções na tomada de decisão de sistemas computacionais". Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-28062016-085426/.
Texto completoThe influence of human emotions expressed by facial mimics in decision-taking of computer systems is analyzed to improve user´s experience. Three modules were developed: the first module comprises a system of assistive computation - a digital alternative and amplified communication board. The second module, called the Affective Module, is a system of affective computation which, through a Computational Vision, retrieves the user\'s facial mimic and classifies their emotional state. The second module was implemented in two stages derived from the Facial Action Codification System (FACS) which identifies facial expressions based on the human cognitive system. In the first stage, the Affective Module infers the basic emotional stages, namely, happiness, surprise, anger, fear, sadness, disgust, and the neutral state. According to most researchers, basic emotions are innate and universal. Thus, the affective module is common to any population. Tests undertaken with the suggested model provided results which were 10.9% above those that employ similar methodologies. Spontaneous emotions were also undertaken and computer results were close to human score rates. The second stage for the development of the Affective Module, facial expressions that reflect dissatisfaction or difficulties during the use of computer systems were identified. The first model of the Affective Module was adjusted to this end. A Decision-taking Module which receives information from the Affective Module and intervenes in the Computer System was developed. Parameters such as icon size, draw transformed into a click, and scanning speed are changed in real time by the Decision-taking Module in the assistive computer system, following information by the Affective Module. Since the Affective Module does not have a training stage to infer the emotional stage, a neutral face algorithm has been suggested to solve the problem of initialing with emotion-featuring faces. Current assay also suggests the distinction between quick facial signals among the base signs (a click or any other sound in the face movement which is not an emotional sign) and emotional signs. Results from Case Studies with APAE children in Presidente Prudente SP Brazil showed that user´s experience may be improved through a computer system with emotional information expressed by facial mimics.
Paleari, Marco. "Informatique Affective : Affichage, Reconnaissance, et Synthèse par Ordinateur des Émotions". Phd thesis, Télécom ParisTech, 2009. http://pastel.archives-ouvertes.fr/pastel-00005615.
Texto completoOrvoen, Hadrien. "Expressions faciales émotionnelles et Prise de décisions coopératives". Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0032/document.
Texto completoFor few decades, rational choice theories failed to properly account for cooperative behaviors. This was illustrated by social dilemmas, games where a self-motivated individual will be tempted to exploit others' cooperative behavior, harming them for his own personal profit. I will first detail how cooperation may rise as a reasonable --- if not rational --- behavior, provided that we consider social interactions in a more realistic context that rational choice theories initially did. From anthropology to neurobiology, cooperation is understood as an efficient adaptation to this natural environment rather than a quirky, self-defeating behavior. Because pertinent information is often lacking or overwhelming, too complex or ambiguous to deal with, it is essential to communicate, to share, and to trust others. Emotions, and their expression, are a cornerstone of humans' natural and effortless navigation in their social environment. Smiles for instance are universally known as a signal of satisfaction, approbation and cooperation. Like other emotional expressions, they are automatically and preferentially treated. They elicit trust and cooperative behaviors in observers, and are ubiquitous in successful collaborative interactions. Beside that however, few is known about how others' expressions are integrated into decision making. That was the focus of the experimental study I relate in this manuscript. More specifically, I investigated how decisions in a trust-based social dilemma are influenced by smiles which are either displayed along a cooperative or defective behavior (``congruently'' and ``incongruently'', resp.). I carried out two experiments where participants played an investment game with different computerized virtual partners playing the role of trustees. Virtual trustees, which were personalised with a facial avatar, could either take and keep participants investment, or reciprocate it with interests. Moreover, they also displayed facial reactions, that were either congruent or incongruent with their computerized ``decision'' to reciprocate or not. Even if the two experiments presented some methodological differences, they were coherent in that they both showed that participants were altered in remembering a virtual trustee's behavior if the latter expressed incongruent emotions. This was observed from participants' investments in game, and from their post-experimental explicit reports. If many improvements to my experimental approach remain to be done, I think it already completes the existing literature with original results. Many interesting perspectives are left open, which appeal for a deeper investigation of face-to-face decision making. I think it constitutes a theoretical and practical necessity, for which researchers will be required to unify the wide knowledge of the major cognitive functions which was gathered over the last decades
Shen, Yu-Hong y 沈育弘. "Image Recognition for Face Emotion Analysis". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/musq5n.
Texto completo國立臺灣海洋大學
電機工程學系
107
Along with the technological development, influence of smart phones and the face recognition technology subsidy, a face can be used for doing many things, e.g., recognition of user identity. Recently, a simple and smart biometric method is used for replacing the traditional password input. The detailed facial expression can apply to different fields such as a robot, life, and medical treatment. For example, the design of the robot has more humanity in human-machine interaction. Then, the robot can learn how to recognize the facial expression and know what to respond to the human facial expression. It is necessary to enhance the anthropomorphic design. This study starts from the perspective of image processing, uses Haar-Like feature as detection method, finds the facial expression for capturing, uses integral image to get the pixels accumulation, speeds up the operation time of feature points, and uses AdaBoost learning algorithm. Find out the key feature from a large number of features to make the classifier become easy and more efficient. The classifier can classify many weak classifiers. Therefore, we use a weak classifier cascading method to combine a strong classifier, and real-time reflect in reducing the complexity of the classifier. Reduce irrelevant image data by layer-by-layer refinement of image. Finally, divide the interested areas and blocks to determine the facial expression.
Wang, Ching-Yu y 王晴右. "The effect of emotion clue and familiarity on face recognition". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/19165800197554982350.
Texto completo中原大學
心理學研究所
91
Face recognition is a cognitive processing for individual to encode、store and retrieve face. The studies from neuropsychology、prosopagnosia and face inversion effect suggested that face recognition processing can be indeed distincted from object and word recognition . Although previous models of face recognition (e.g., Functional Model、Interactive Activation Model and Pattern Adjust Model)tried to clarify the processes of face recognition, but there were two problems remained:the roles of emotional clue and familiarity. Therefore a two-stage face recognition model was proposed account for the effect of emotional clue and familiarity on face recognition. Two-stage face recognition model took the emotion analyses and features-whole analyses as two separate perceptual routes, and these information will integrate into a internal facial representation. Therefore internal facial representation should include emotional information, rather than an expressionless face. On the other hand, as the familiarity increased, individual face node would become clear, or even unique. It helps individual to retrieve face more automation easily and stable. While individual stored familiar faces, the distance between nodes would be too close to induce a competition effect. Therefore, four variation pattern faces were used in study 1 to verify face internal representation is not an expressionless one. Study 2 uses three different tasks to verify emotion and features-whole information will integrate into a internal facial representation. Study 3 uses two display ways and two collection sizes to verify that face nodes would be unique and clear as familiarity increased. But we find that familiar face was still influenced by display way and collection size. Finally, study 4 uses high/low familiar faces to verify the role of similarity on whether it could shorten the distance between face nodes and causes competition effect. This study demonstrates emotion clues and familiarity play important roles in face recognition. More studies are required to clarify the effect of familiarity. And some suggestions for the future study were also presented.
LAI, YU-DIAN y 賴育鈿. "A Mirroring and Monitoring System Using Face and Emotion Recognition Techniques". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/vh4649.
Texto completo逢甲大學
資訊工程學系
107
Personnel management is usually required in classrooms, small companies, or laboratories. Thus, an entrance monitoring system may be installed at the entrance and exit to facilitate management. We use face recognition technology in the entrance surveillance system to identify the person's identity. In this system, a smart mirror is designed, which can display the information of users. Managers can know the identity and emotions of members, which will help members and managers at the same time. In this study, we proposed a smart mirror and entrance monitoring system by using deep learning and context-aware technology. Among them, we use the deep learning model of VGG-Face. Using transfer learning, the system can be identified without collecting too much photo training. We proposed the Top-K method to improve the accuracy of the identification system. The smart mirror can know the user's information, such as age, gender, emotion, and identify the person. In addition, it can send a message alert to the administrator via the LINE bot. There are two types of message alert, including regular notifications and warning notifications. This message alert feature sends a regular notification if the system recognizes a member. Conversely, if the system identifies a stranger, this message alert feature sends a warning to notify the administrator. This smart mirror helps managers manage better. The system is suitable for small groups such as laboratories, homes, and companies.
Lausen, Adi. "Emotion recognition from expressions in voice and face – Behavioral and Endocrinological evidence –". Doctoral thesis, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0003-C121-D.
Texto completoPing-ShengHsu y 許斌聖. "An Implementation of Live Video Conferencing Agent Base on Face Emotion Recognition". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/38341097389806288334.
Texto completo國立成功大學
工程科學系碩博士班
101
Internet video conferencing system has become a very important message communication tool so far. People located at different places can be easily connected via Internet video conferencing system. In this thesis, a live video conferencing agent system has been proposed. The proposed system provides the basic functions, text messages, video images and audio of a video conferencing system. It also designed as an agent system. While the contact person is not on line, the video conferencing system is switched to act as an agent system. The agent system uses facial emotion recognition system to decide the user’s emotion from the images captured by webcam and response the proper information extracted from the data base according to the decided user’s emotion. Five emotions: happy, angry, sad, surprised, and neutral expressions are provided and some corresponding information for each emotion has been created in the data base. The user’s emotion is determined via the comparing the features of captured on line user image with that of user’s neutral expression. This system is tested in real conditions to get recognition rate of 93.5, and the agent system could response the proper information in the result.
Cassidy, S., D. Ropar, Peter Mitchell y P. Chapman. "Can adults with autism spectrum disorders infer what happened to someone from their emotional response". 2013. http://hdl.handle.net/10454/17897.
Texto completoCan adults with autism spectrum disorders (ASD) infer what happened to someone from their emotional response? Millikan has argued that in everyday life, others' emotions are most commonly used to work out the antecedents of behavior, an ability termed retrodictive mindreading. As those with ASD show difficulties interpreting others' emotions, we predicted that these individuals would have difficulty with retrodictive mindreading. Sixteen adults with high-functioning autism or Asperger's syndrome and 19 typically developing adults viewed 21 video clips of people reacting to one of three gifts (chocolate, monopoly money, or a homemade novelty) and then inferred what gift the recipient received and the emotion expressed by that person. Participants' eye movements were recorded while they viewed the videos. Results showed that participants with ASD were only less accurate when inferring who received a chocolate or homemade gift. This difficulty was not due to lack of understanding what emotions were appropriate in response to each gift, as both groups gave consistent gift and emotion inferences significantly above chance (genuine positive for chocolate and feigned positive for homemade). Those with ASD did not look significantly less to the eyes of faces in the videos, and looking to the eyes did not correlate with accuracy on the task. These results suggest that those with ASD are less accurate when retrodicting events involving recognition of genuine and feigned positive emotions, and challenge claims that lack of attention to the eyes causes emotion recognition difficulties in ASD.
University of Nottingham, School of Psychology
Henriques, Bruno Filipe Maia. "Management of digital contents in multiple displays". Master's thesis, 2021. http://hdl.handle.net/10773/31296.
Texto completoCom a utilização generalizada de sistemas de disseminação de conteúdos digitais, surge a oportunidade de implementar soluções capazes de avaliar a reacção do público. Esta dissertação reflete a implementação de uma dessas soluções. Para isso, o desenvolvimento passou pela adaptação de um sistema de sinalização digital previamente funcional. Neste sentido, aos terminais de exposição de conteúdos, foram emparelhadas câmaras digitais de modo a permitir a captação de informação da área à frente destes. Com recurso a tecnologias de visão de computador, os terminais fazem, em tempo real, deteção de pessoas que apareçam no campo de visão das câmaras, sendo esta informação comunicada a um servidor para extração de dados. No servidor, são utilizados métodos para realização de reconhecimento de faces e emoções, e também é feita extração de dados indicadores da posição da cabeça, o que permite o cálculo de um coeficiente de atenção. Os dados são guardados numa base de dados relacional e podem ser consultados através de uma plataforma web, onde são apresentados associados aos contéudos correspondentes ao momento de captação e extração destes. Esta solução, permite, assim, a avaliação do impacto dos conteúdos digitais apresentados pelo sistema.
Mestrado em Engenharia de Computadores e Telemática