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Higher-Order Visual Processing 

Higher-Order Visual Processing
Chapter:
Higher-Order Visual Processing
Author(s):

John Hart Jr.

DOI:
10.1093/med/9780190219031.003.0007
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date: 22 January 2021

The term “disorders of higher-order visual processing” generates confusion as to what represents a “higher-order” function. This is distinguished in two ways for the purposes of this text, both functionally and anatomically. Higher-order visual processing refers to cognitive operations with visual information that is more complex than perceptual visual processing performed in primary visual cortices. Visual object recognition and location are accounted for in theories of higher-order visual object processing. These models are used to delineate cognitive anatomic correlates and implement these to account for aspects of disorders of higher-order processing, including apperceptive visual agnosia, associative visual agnosia, optic ataxia, simultanagnosia, prosopagnosia, achromatopsia, and neglect.

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