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Face and Mind$
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Andrew W. Young

Print publication date: 1998

Print ISBN-13: 9780198524205

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198524205.001.0001

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Dissociable deficits after brain injury

Dissociable deficits after brain injury

Chapter:
(p.181) 6 Dissociable deficits after brain injury
Source:
Face and Mind
Author(s):

Andrew W. Young

F. Newcombe

E.H.F. de Hann

M. Small

D.C. Hay

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198524205.003.0006

Current theoretical models of face perception postulate separate routes for processing information needed in the recognition of a familiar face, for matching photographs of unfamiliar faces, and for the analysis of facial expressions. This study investigated this claim in a group of ex-servicemen who had sustained unilateral brain injuries affecting posterior areas of the left or right cerebral hemisphere. Care was taken to confirm the nature of impairment by using two different tasks to assess each of the three theoretically defined abilities (leading to a total of six tasks). The results showed selective impairments of all three abilities on accuracy scores. Response latency data confirmed the finding of a selective deficit in the processing of facial expressions, but produced evidence suggesting that impairments affecting familiar face recognition and unfamiliar face matching were not completely independent from each other in this group of ex-servicemen.

Keywords:   theoretical models, face perception, ex-servicemen, unilateral brain injuries, cerebral hemisphere

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