Análise de emoções em expressões faciais: veracidade das emoções e rastreio ocular

• Autor(a) principal: Busin, Yuri
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações do Mackenzie
• Texto Completo: http://dspace.mackenzie.br/handle/10899/22551
• topic: expressão facial; julgamento de emoções; movimentos oculares; facial expression; judgment of emotions; eye moviments; CNPQ::CIENCIAS HUMANAS::PSICOLOGIA

Emotions consist in reactions to significant actions on individuals, more specifically, the responses that involve an affective experience, and may be expressed verbally or not. The human face can express many emotions enabling the exchange of information about affective states, facilitating interaction between individuals. Not all facial expressions are genuine, because in social interactions exist lies and deceptions that can range from altruistic and motives to lie for fear of punishment. Studies show brain regions associated with identifying and perception of each emotion and as cerebral laterality may influence the recognition and expression. The left side of the face has been identified as the most informative to identify emotions, revealing the existence of asymmetry in facial expressions of emotions identification. The objective of the study is to evaluate the pattern of eye movements in tasks of trial expressions of real and falsified emotions. Participated 33 subjects, who was instructed to watch and judge the 96 movies, divided in 2 bateries, each containing 48 movies with true and false facial emotion expressions. All the movies showed more the left area of the face and were edited to have a mirror efect. The movies were presented on a computer with Eye- Tracking device for tracking eye movements. The expressions presented were: happiness, fear and sadness. Participants indicated whether the expression view was true or not. The results indicate that the left hemisphere of the brain is more involved in judging the emotions through the face, as well as being faster, and genuine emotions got a better hit rate.