Reduplication of visual stimuli.
Investigation of P.T., a man who experienced reduplicative delusions, revealed significant impairments on tests of recognition memory for faces and understanding of emotional facial expressions. On formal tests of his recognition abilities, P.T. showed reduplication to familiar faces, buildings, and written names, but not to familiar voices. Reduplication may therefore have been a genuinely visual problem in P.T.'s case, since it was not found to auditory stimuli. This is consistent with hypotheses which propose that the basis of reduplication can lie in part in malfunction of the visual system.
Medical Research Council Applied Psychology Unit, 15 Chaucer Road, Cambridge CB2 2EF.
A W
AW
Young
Department of Clinical Neurosciences, Western General Hospital, Crewe Road, Edinburgh EH4 2XU.
D J
DJ
Hellawell
Department of Psychiatry, Northern General Hospital, Herries Road, Sheffield S5 7AU.
S
S
Wright
School of Psychology, University of Wales College of Cardiff, Cardiff CF1 3YG, UK.
H D
HD
Ellis
Delusions; Face recognition; Facial expressions; Reduplication; Voice recognition