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Deficits in visual search for conjunctions of motion and form after parietal damage but with spared hMT+/V5

Dent, K and Lestou, V and Humphreys, GW (2010) 'Deficits in visual search for conjunctions of motion and form after parietal damage but with spared hMT+/V5.' Cognitive Neuropsychology, 27 (1). 72 - 99. ISSN 0264-3294

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Abstract

It has been argued that area hMT+/V5 in humans acts as a motion filter, enabling targets defined by a conjunction of motion and form to be efficiently selected. We present data indicating that (a) damage to parietal cortex leads to a selective problem in processing motion-form conjunctions, and (b) that the presence of a structurally and functional intact hMT+/V5 is not sufficient for efficient search for motion-form conjunctions. We suggest that, in addition to motion-processing areas (e.g., hMT+/V5), the posterior parietal cortex is necessary for efficient search with motion-form conjunctions, so that damage to either brain region may bring about deficits in search. We discuss the results in terms of the involvement of the posterior parietal cortex in the top-down guidance of search or in the binding of motion and form information. © 2010 Psychology Press.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Jim Jamieson
Date Deposited: 28 Nov 2011 14:58
Last Modified: 17 Aug 2017 18:15
URI: http://repository.essex.ac.uk/id/eprint/1622

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