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Connection Science, 1991, 3(2), 163178. Simulating the "other-race effect" as a problem in

Summary: Connection Science, 1991, 3(2), 163­178.
Simulating the "other-race effect" as a problem in
perceptual learning
Alice O'Toole
The University of Texas at Dallas
Ken Deffenbacher
The University of Nebraska at Omaha
Herv´e Abdi
The University of Texas at Dallas
Jim Bartlett
The University of Texas at Dallas
We report a series of simulations on the well-known "other-race effect." We
trained an autoassociative network on a majority and a minority race of faces,
and tested the model's ability to process faces from the two races in different
ways. First, the model was better able to reconstruct unlearned majority faces
than minority faces. Secondly, the average inter-face similarity was higher for
the reconstructed minority faces than for reconstructed majority faces, indi-
cating that the model was coding the majority faces more distinctively than
the minority faces. These results held for Caucasian faces as the majority
race and Japanese faces as the minority race and vice versa. Thirdly, we


Source: Abdi, Hervé - School of Behavioral and Brain Sciences, University of Texas at Dallas


Collections: Biology and Medicine; Computer Technologies and Information Sciences