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The neuropsychology of object constancy

Published online by Cambridge University Press:  01 May 1997

OLIVER H. TURNBULL ,
DAVID P. CAREY  and
ROSALEEN A. McCARTHY
OLIVER H. TURNBULL
Affiliation:
Department of Psychology, King's College, Aberdeen University, Aberdeen, Scotland, U.K.
DAVID P. CAREY
Affiliation:
Department of Psychology, King's College, Aberdeen University, Aberdeen, Scotland, U.K.
ROSALEEN A. McCARTHY
Affiliation:
Department of Experimental Psychology, University of Cambridge, Cambridge, England
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Abstract

There have been several proposals for the mechanism by which we are able to recognize an object across a number of viewpoints. Viewpoint-dependent accounts suggest that recognition may be based on an incremental transformation (e.g., mental rotation) strategy, while a variety of viewpoint-independent mechanisms for object recognition have also been proposed. Recent research in neurobiology, based on the two cortical visual systems account, suggest that the processes of viewpoint-dependent and viewpoint-independent object recognition may rely on separate anatomical regions, and that brain lesions may leave patients with selective access to particular types of representation. Evidence from a variety of neuropsychological disorders are reviewed to support the position that viewpoint-independent object recognition depends upon the integrity of occipitotemporal structures. In addition, it is suggested that viewpoint-dependent processes (perhaps depending on occipitoparietal structures) may supplement this primary system under nonoptimal circumstances. (JINS, 1997, 3, 288–298.)

Keywords

Object recognitionTwo visual systemsObject constancy
Type
CRITICAL REVIEW
Information
Journal of the International Neuropsychological Society , Volume 3 , Issue 3 , May 1997 , pp. 288 - 298
Copyright
© 1997 The International Neuropsychological Society

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