Tracking the timecourse of social perception: The effects of racial cues on event-related brain potentials

被引:136
作者
Ito, TA
Thompson, E
Cacioppo, JT
机构
[1] Univ Colorado, Dept Psychol, Boulder, CO 80309 USA
[2] Univ Chicago, Dept Psychol, Chicago, IL 60637 USA
关键词
racial prejudice; implicit prejudice; face processing; social neuroscience;
D O I
10.1177/0146167204264335
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Event-related potentials were used to track social Perception Processes associated with viewing faces of racial in group and outgroup members. Activity associated with three distinct processes was detected. First, peaking at approximately 170 ms, faces were distinguished from nonface stimuli. Second, peaking at approximately 250 ms, ingroup members were differentiated from outgroup members, with a larger component suggesting greater attention to ingroup members. This effect may reflect the spontaneous application of a deeper level of processing to ingroup members. Third, peaking at approximately 520 ms, evaluative differentiation of ingroup and outgroup members occurred, with greater ingroup bias displayed by those with higher levels of prejudice on an explicit measure. Together, the results demonstrate the promise of using neural processes to track the presence, timing, and degree of activation of components relevant to social perception, prejudice, and stereotyping.
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页码:1267 / 1280
页数:14
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