Sensory and non-sensory visual disorders in man and monkey.

The posterior third of the cerebral cortex in monkeys consists of a patchwork of visual areas in each of which there is a 'map' of the retina. The details of the 'map' vary considerably from one area to another and one notable variation concerns the optimal visual feature to whic...

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Main Author: Cowey, A
Format: Journal article
Language:English
Published: 1982
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author Cowey, A
author_facet Cowey, A
author_sort Cowey, A
collection OXFORD
description The posterior third of the cerebral cortex in monkeys consists of a patchwork of visual areas in each of which there is a 'map' of the retina. The details of the 'map' vary considerably from one area to another and one notable variation concerns the optimal visual feature to which the cells respond. Orientation, disparity, colour and movement are emphasized in separate areas that appear to be concerned with sensory analysis. Their existence and the possibility that brain damage is occasionally restricted chiefly to one such area may explain the rare highly selective visual sensory impairments that can follow posterior cerebral damage in man. Other areas are notable for having little or no retinotopic representation. Here the cells may have huge receptive fields and complex trigger features. When such regions are removed, the animal's visual sensory abilities are intact but its recognition of patterns and objects is not. This condition resembles human visual agnosia.
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spelling oxford-uuid:1eb0896a-8e12-43fb-a5fa-fafa674f0c642022-03-26T11:17:51ZSensory and non-sensory visual disorders in man and monkey.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1eb0896a-8e12-43fb-a5fa-fafa674f0c64EnglishSymplectic Elements at Oxford1982Cowey, AThe posterior third of the cerebral cortex in monkeys consists of a patchwork of visual areas in each of which there is a 'map' of the retina. The details of the 'map' vary considerably from one area to another and one notable variation concerns the optimal visual feature to which the cells respond. Orientation, disparity, colour and movement are emphasized in separate areas that appear to be concerned with sensory analysis. Their existence and the possibility that brain damage is occasionally restricted chiefly to one such area may explain the rare highly selective visual sensory impairments that can follow posterior cerebral damage in man. Other areas are notable for having little or no retinotopic representation. Here the cells may have huge receptive fields and complex trigger features. When such regions are removed, the animal's visual sensory abilities are intact but its recognition of patterns and objects is not. This condition resembles human visual agnosia.
spellingShingle Cowey, A
Sensory and non-sensory visual disorders in man and monkey.
title Sensory and non-sensory visual disorders in man and monkey.
title_full Sensory and non-sensory visual disorders in man and monkey.
title_fullStr Sensory and non-sensory visual disorders in man and monkey.
title_full_unstemmed Sensory and non-sensory visual disorders in man and monkey.
title_short Sensory and non-sensory visual disorders in man and monkey.
title_sort sensory and non sensory visual disorders in man and monkey
work_keys_str_mv AT coweya sensoryandnonsensoryvisualdisordersinmanandmonkey