ResumoA literatura vem discutindo acerca da percepção de emoções faciais evidentes em idosos com Doença de Alzheimer (DA). Alguns autores sugerem que os défi cits apresentados são decorrentes de problemas visuoespaciais; outros sugerem que são por difi culdades no processamento das emoções; e há os que defendem que esse défi cit perceptivo é secundário à evolução da demência. Esta pesquisa buscou investigar os aspectos neuropsicológicos da expressão emocional facial, por meio da aplicação da Escala de Inteligência Wechsler para Adultos-III (WAIS-III) e de um programa de computador desenvolvido pelo Laboratório de Psicobiologia denominado Teste de Percepção de Expressões Faciais (TEPEF), que avalia a percepção de faces emocionais em idosos. Os resultados sugerem que o WAIS-III foi sensível para a diferenciação entre os grupos experimental e controle, mas apresentou pouca especifi cidade. O TEPEF apresentou consistência para avaliar as expressões faciais de alegria, tristeza, nojo, surpresa e raiva. Além disso, ele mostrou que a percepção de alegria em idosos com DA em fase moderada está relativamente preservada. Conclui-se, portanto, que os prejuízos relacionam-se às emoções negativas evidenciadas pela percepção das faces emocionais, demandando supervisão continuada para os idosos com essas alterações. Palavras-chave: Doença de Alzheimer, face, percepção visual. AbstractLiterature has been discussing the perception of emotional facial expressions in elderly suffering from Alzheimer's Disease (AD). Some authors suggest that defi cits occur due to visuospatial problems; others suggest that the diffi culty is related to emotional processing; still others argue that this perceptive defi cit is secondary to dementia evolution. This study aimed to investigate the neuropsychological aspects of the perception of facial emotional expression by applying the Wechsler Adult Intelligence Scale-III (WAIS-III) test, as well as a software named Perception Test of Facial Emotional Expressions (TEPEF), which analyzes the perception of emotional faces by the elderly. The results suggest that WAIS-III was sensible in discriminating the differences between experimental and control groups, but presented little specifi city. The TEPEF presented consistency to evaluate facial expressions of happiness, sadness, disgust, surprise and anger. Furthermore, it showed that the perception of happiness in the elderly with mild AD is relatively preserved. The expressions more easily perceived -such as happiness and sadness -had correlations with few WAIS-III subtests. Therefore, the study concluded that the losses are related to negative emotions evidenced by the perception of emotional faces, which requires continued supervision for the elderly with these changes.
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