Voice Recognition Impairment in a Blind Capgras PatientReport as inadecuate




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Behavioural Neurology - Volume 6 1993, Issue 4, Pages 225-228

Case Report

Department of Mental Health, University of Aberdeen Medical School, Foresterhill, Aberdeen AB9 2ZD, UK

Medical Research Council Applied Psychology Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK

Department of Clinical Neurosciences, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK

Received 14 September 1993; Accepted 30 October 1993

Copyright © 1993 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We report a case of a blind woman, M.N., who experienced the Capgras delusion. She thought that her pet cat had been replaced by a replica which was “ill-intentioned” towards her. M.N.-s case shows that the basis of the Capgras delusion cannot lie exclusively in damage to the visual system. However, testing of M.N.-s auditory recognition abilities revealed a deficit in the recognition of familiar voices. This impairment is consistent with the view that the Capgras delusion may arise in connection with damage to recognition mechanisms, and parallels findings of face processing impairments in sighted Capgras patients.





Author: I. Reid, A. W. Young, and D. J. Hellawell

Source: https://www.hindawi.com/



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