Nomi Jason S, Frances Candice, Nguyen Maia T, Bastidas Stephanie, Troup Lucy J
Department of Psychology, Colorado State University, Fort Collins, Colorado, USA.
Neuroreport. 2013 Oct 2;24(14):813-7. doi: 10.1097/WNR.0b013e3283647682.
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.
当前研究考察了恐惧、愤怒、高兴和中性表情与左、直视和右注视方向之间的相互作用。人类参与者观看由各种表情和注视组合构成的面孔，同时收集事件相关电位（ERP）数据。结果显示，愤怒表情调节了P1的平均波幅，而恐惧和高兴表情调节了N170的平均波幅。未发现注视对P1和N170平均波幅有影响。恐惧、愤怒和高兴表情在200 - 400毫秒的时间窗口内开始与注视相互作用，以影响平均波幅。结果表明，表情的早期加工独立于注视影响ERP，而表情和注视相互作用影响后期ERP。
