本民族面孔吸引注意:来自ERPs的证据

Own-race Faces Capture Attention: Evidence from Event-related Potentials

目的探讨异族面孔还是本民族面孔的种族信息更吸引注意的证据及其机制。方法采用返回抑制试验范式(inhibition of return,IOR),以反映视觉空间注意分配的N2pc为指标,记录和分析20名中国青年被试观看正立和倒立位本民族(中国人)和异族(白人)面孔诱发的事件相关电位(event-related potentials,ERPs)。结果和白人面孔相比,本民族面孔诱发出更为显著的ERPs中的N2pc成分,而这种现象在面孔翻转的时候缺如。结论至少对中国人而言,本民族面孔吸引注意,其机制是基于高水平的整体加工。

Objective To investigate attentional capture by face’ s race as well as the underlying psychophysiological mechanism. Methods The current study recorded N2 pc component of event-related potentials（ ERPs）elicited by own-race and other-race faces in an inhibition of return（ IOR） task in 20 Chinese young participants. Results Compared to Caucasian（ other-race） faces,Chinese（ own-race） faces elicited N2 pc component. This phenomenon disappeared when faces were inverted. Conclusion The own-race faces automatically capture attention and its mechanism is based on the high level of the overall processing at least for the Chinese people.