Pupillary Responses as an Indication of Emotional Arousal

Pupillary dilation has been used for understanding the process of psychological activity by several researchers. The present study was aimed to find difference in pupillary dilation according to emotional valence of visual stimuli and to reveal relationship between emotional intensity and pupillary dilation. 102 subjects’(28 males, 74 females) pupil responses were measured while presenting 10 negative, 10 neutral and 10 positive pictures. The subjects also rated their subjective emotional intensity that they experienced while they were exposed to the stimuli. Our results showed that the amount of pupillary dilation was significantly different according to the valence of emotional stimuli. We found significant difference in pupillary dilation between neutral stimuli and stimuli with emotional valence(negative/positive). But there was no significant difference between positive and negative stimuli. Most importantly, there was significant positive relation between emotional intensity(objective/subjective) and pupillary dilation. These results suggests that pupillary dilation may indicate the level of emotional arousal that a subject experiences.

keywords: 동공크기, 정서가. 정서강도, 정서적 각성, 자율신경계의 활동, pupillary dilation, emotional valence. emotional intensity, emotional arousal, activation of autonomic nervous system

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Article Contents

Vol.32 No.4

Pupillary Responses as an Indication of Emotional Arousal

Abstract

Reference

Korean Journal of Psychology: General