Detection of emotional faces: The role of spatial frequencies and local features

扫视 心理学 囊状掩蔽 空间频率 面部表情 面子(社会学概念) 认知心理学 眼球运动 亮度 对比度(视觉) 沟通 人工智能 计算机科学 物理 光学 神经科学 社会科学 社会学
作者
Léa ENTZMANN,Nathalie Guyader,Louise Kauffmann,Carole Peyrin,Martial Mermillod
出处
期刊:Vision Research [Elsevier BV]
卷期号:211: 108281-108281 被引量:1
标识
DOI:10.1016/j.visres.2023.108281
摘要

Models of emotion processing suggest that threat-related stimuli such as fearful faces can be detected based on the rapid extraction of low spatial frequencies. However, this remains debated as other models argue that the decoding of facial expressions occurs with a more flexible use of spatial frequencies. The purpose of this study was to clarify the role of spatial frequencies and differences in luminance contrast between spatial frequencies, on the detection of facial emotions. We used a saccadic choice task in which emotional-neutral face pairs were presented and participants were asked to make a saccade toward the neutral or the emotional (happy or fearful) face. Faces were displayed either in low, high, or broad spatial frequencies. Results showed that participants were better to saccade toward the emotional face. They were also better for high or broad than low spatial frequencies, and the accuracy was higher with a happy target. An analysis of the eye and mouth saliency ofour stimuli revealed that the mouth saliency of the target correlates with participants' performance. Overall, this study underlines the importance of local more than global information, and of the saliency of the mouth region in the detection of emotional and neutral faces.
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