Asymmetric neurocognitive representation of ethnic in-group/out-group faces |
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Authors: | YiNa Ma JianQiao Ge XiaoJing Xu Yan Fan ShengMin Yang ShiHui Han |
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Institution: | (1) Department of Psychology, Peking University, Beijing, 100871, China;(2) School of Ethnology and Sociology, Minzu University of China, Beijing, 100081, China |
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Abstract: | To investigate asymmetric neurocognitive representation of ethnic in-group and out-group members, we recorded event-related
potentials (ERPs) to faces in a perceptual task after the faces had been primed with positive or negative affective links.
The affective link priming did not influence the ERPs to ethnic out-group faces. However, relative to the positive affective
link priming, the negative affective link priming increased the amplitudes of an early frontal negativity (N100) and a following
central negativity but decreased the amplitude of a late positive potential elicited by ethnic in-group faces. Moreover, the
N100 amplitude correlated with the degree of negative attitudes towards ethnic in-group faces. The findings suggest that multiple-level
neural mechanisms are involved in individuation of heterogeneous ethnic in-group faces.
Supported by National Natural Science Foundation of China (Grant Nos. 30630025, 30828012) and Minzu University of China (Project
985) |
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Keywords: | affective link ERP ethnicity face |
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