情動判断に及ぼす顔の一部を遮蔽することの効果 : 選択法を用いた検討

摘要

The purpose of this study was to examine the effects of shading parts of face on emotion recognition using methods of choice. The participants were 34 undergraduate students, whose ages ranged from 20 to 29 years. The stimulus materials comprised photographs of six basic emotions (happiness, surprise, fear, anger, sadness and, disgust), and copies of these photographs in which upper or lower parts of these six basic emotions were shaded. The models for the photographs were six Japanese males and six Japanese females. The task assigned to the participants was to select emotional words appropriate for each photograph. The rates of correct responses for the male and female photographs of happiness, surprise and sadness were > 90%. In the male photographs, differences in the rates of correct responses between photographs with their upper parts shaded and those with their lower parts shaded were significant in happiness, anger, sadness and disgust. In the female photographs, differences in the rates of correct responses between photographs with their upper parts shaded and those with their lower parts shaded were significant in happiness, fear, anger and disgust. These results suggest the following ; 1) Happiness can be recognised more precisely by viewing the lower parts of face regardless of the gender depicted in the photographs ; 2) Anger can be recognised more precisely by viewing the upper parts of face regardless of the gender depicted in the photographs ; 3) Fear can not be recognised precisely even in photographs that are not shaded ; 4) In future studies, it is necessary to examine effects of shading parts of the face on emotion recognition using other sets of photographs, and to examine effects of action units peculiar to each emotion on emotion recognition.