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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Identification of emotional expressiveness in facial photographs over 36h of extended vigilance in healthy young mena preliminary study

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Autor(es):
Ginani, Giuliano Emerenciano ; Pradella-Hallinan, Marcia ; Pompeia, Sabine
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: COGNITION & EMOTION; v. 31, n. 2, p. 339-348, 2017.
Citações Web of Science: 3
Resumo

Changes in sleep patterns negatively influence some emotional responses, but their effects on facial expressiveness identification are unclear. To investigate these effects, 21 young, healthy, male volunteers of intermediate chronotype evaluated emotional expressiveness of faces depicting 6 basic emotions in 5 emotional gradients every 4h over 36h of continuous wakefulness. To measure attention and mood we used the Psychomotor Vigilance test and the Positive and Negative Affect Schedule Expanded, respectively. We found effects of emotional gradient for all types of emotions (100%>80%>60%>40%>20%) during all tested periods, with no indications of circadian effects. The only emotional rating to be affected was disgust, which was progressively blunted throughout the experiment. This effect did not parallel homeostatic and circadian changes in mood, alertness or attention. We conclude that identifying disgust on facial photographs is particularly sensitive to lack of sleep irrespective of sleep-induced changes in mood and attention in males. (AU)

Processo FAPESP: 11/01286-0 - Avaliação da variação circadiana e efeitos da privação de sono sobre o desempenho em tarefas de memória operacional
Beneficiário:Sabine Pompéia
Linha de fomento: Auxílio à Pesquisa - Regular