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The computation of occluded contours in visual agnosia: Evidence for early computation prior to shape binding and figure-ground coding.

Abstract:

We examined whether an agnosic patient with a deficit in early visual processing, HJA, completed occluded contours. We used matching tasks with stimuli composed of three superimposed or occluded shapes. Experiments 2 and 6 required superimposed or occluded shapes to be discriminated from distractors in which the position of one shape was changed. HJA was selectively impaired with occluded relative to superimposed shapes. His performance was affected by the spatial separation of the occluded c...

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Publication status:
Published

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Publisher copy:
10.1080/026432900750038317

Authors


Giersch, A More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MSD, Experimental Psychology
Boucart, M More by this author
Journal:
Cognitive neuropsychology
Volume:
17
Issue:
8
Pages:
731-759
Publication date:
2000-12-05
DOI:
EISSN:
1464-0627
ISSN:
0264-3294
URN:
uuid:62653e47-6769-484e-b620-38ab2daa3f73
Source identifiers:
311808
Local pid:
pubs:311808
Language:
English

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