Wiese, H. and Kaufmann, J.M. and Schweinberger, S.R. (2014) 'The neural signature of the own-race bias : evidence from event-related potentials.', Cerebral cortex., 24 (3). pp. 826-835.
Participants are more accurate at remembering faces of their own relative to another ethnic group (own-race bias, ORB). This phenomenon has been explained by reduced perceptual expertise, or alternatively, by the categorization of other-race faces into social out-groups and reduced effort to individuate such faces. We examined event-related potential (ERP) correlates of the ORB, testing recognition memory for Asian and Caucasian faces in Caucasian and Asian participants. Both groups demonstrated a significant ORB in recognition memory. ERPs revealed more negative N170 amplitudes for other-race faces in both groups, probably reflecting more effortful structural encoding. Importantly, the ethnicity effect in left-hemispheric N170 during learning correlated significantly with the behavioral ORB. Similarly, in the subsequent N250, both groups demonstrated more negative amplitudes for other-race faces, and during test phases, this effect correlated significantly with the ORB. We suggest that ethnicity effects in the N170 reflect an early categorization of other-race faces into a social out-group, resulting in less efficient encoding and thus decreased memory. Moreover, ethnicity effects in the N250 may represent the “tagging” of other-race faces as perceptually salient, which hampers the recognition of these faces.
|Full text:||(AM) Accepted Manuscript|
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|Publisher Web site:||https://doi.org/10.1093/cercor/bhs369|
|Publisher statement:||This is a pre-copyedited, author-produced version of an article accepted for publication in Cerebral Cortex following peer review. The version of record Holger Wiese, Jürgen M. Kaufmann, Stefan R. Schweinberger; The Neural Signature of the Own-Race Bias: Evidence from Event-Related Potentials. Cerebral Cortex 2014; 24 (3): 826-835 is available online at: https://doi.org/10.1093/cercor/bhs369.|
|Date accepted:||28 October 2012|
|Date deposited:||10 March 2017|
|Date of first online publication:||21 November 2012|
|Date first made open access:||No date available|
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