Interaction of threat expressions and eye gaze: an event-related potential study

被引:15
作者
Nomi, Jason S. [1 ]
Frances, Candice [2 ]
Nguyen, Maia T. [1 ]
Bastidas, Stephanie [1 ]
Troup, Lucy J. [1 ]
机构
[1] Colorado State Univ, Dept Psychol, Ft Collins, CO 80523 USA
[2] New Coll Florida, Dept Psychol, Sarasota, FL USA
基金
美国国家科学基金会;
关键词
emotional expression; event-related potential; eye gaze; face perception; FACE PERCEPTION; TIME-COURSE; DIRECTION; ERP;
D O I
10.1097/WNR.0b013e3283647682
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The current study examined the interaction of fearful, angry, happy, and neutral expressions with left, straight, and right eye gaze directions. Human participants viewed faces consisting of various expression and eye gaze combinations while event-related potential (ERP) data were collected. The results showed that angry expressions modulated the mean amplitude of the P1, whereas fearful and happy expressions modulated the mean amplitude of the N170. No influence of eye gaze on mean amplitudes for the P1 and N170 emerged. Fearful, angry, and happy expressions began to interact with eye gaze to influence mean amplitudes in the time window of 200-400 ms. The results suggest early processing of expression influence ERPs independent of eye gaze, whereas expression and gaze interact to influence later ERPs. (C) 2013 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
引用
收藏
页码:813 / 817
页数:5
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