The neural plasticity of other-race face recognition |
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Authors: | James W Tanaka Lara J Pierce |
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Institution: | 1. Department of Psychology, University of Victoria, STN CSC, P.O. Box 3050, V8W 3P5, Victoria, BC, Canada
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Abstract: | Although it is well established that people are better at recognizing own-race faces than at recognizing other-race faces,
the neural mechanisms mediating this advantage are not well understood. In this study, Caucasian participants were trained
to differentiate African American (or Hispanic) faces at the individual level (e.g., Joe, Bob) and to categorize Hispanic (or African American) faces at the basic level of race (e.g., Hispanic, African American). Behaviorally, subordinate-level individuation training led to improved performance on a posttraining recognition test,
relative to basic-level training. As measured by event-related potentials, subordinate- and basic-level training had relatively
little effect on the face N170 component. However, as compared with basic-level training, subordinate-level training elicited
an increased response in the posterior expert N250 component. These results demonstrate that learning to discriminate other-race
faces at the subordinate level of the individual leads to improved recognition and enhanced activation of the expert N250
component. |
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Keywords: | |
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