Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'.
We describe psychophysical, neuropsychological and neuro-ophthalmological studies of visual abilities in a patient who, following a right hemisphere stroke, had difficulty in combining parts of objects into a whole and in reading. Strikingly, her perceptual problems were accentuated when the objects...
| Κύριοι συγγραφείς: | , , , , |
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| Μορφή: | Journal article |
| Γλώσσα: | English |
| Έκδοση: |
2002
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| _version_ | 1826290364894412800 |
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| author | Vaina, L Cowey, A LeMay, M Bienfang, D Kikinis, R |
| author_facet | Vaina, L Cowey, A LeMay, M Bienfang, D Kikinis, R |
| author_sort | Vaina, L |
| collection | OXFORD |
| description | We describe psychophysical, neuropsychological and neuro-ophthalmological studies of visual abilities in a patient who, following a right hemisphere stroke, had difficulty in combining parts of objects into a whole and in reading. Strikingly, her perceptual problems were accentuated when the objects moved or when she moved. Formal testing showed that her main deficits were in depth perception, various tasks of motion and object recognition of degraded stimuli. But low-level detection and discrimination of form and color were normal. Despite her deficits in visual motion and degraded static-object recognition, her visual recognition of 'biological motion' stimuli was normal. Structural magnetic resonance imaging revealed an infarct in the ventro-medial occipito-temporal region, extending ventro-laterally and leading to a 'kaleidoscopic disintegration of visible objects'. |
| first_indexed | 2024-03-07T02:43:04Z |
| format | Journal article |
| id | oxford-uuid:ab1e2b51-f42c-4e1a-9415-1a8bffa0ad6a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:43:04Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:ab1e2b51-f42c-4e1a-9415-1a8bffa0ad6a2022-03-27T03:19:42ZVisual deficits in a patient with 'kaleidoscopic disintegration of the visual world'.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab1e2b51-f42c-4e1a-9415-1a8bffa0ad6aEnglishSymplectic Elements at Oxford2002Vaina, LCowey, ALeMay, MBienfang, DKikinis, RWe describe psychophysical, neuropsychological and neuro-ophthalmological studies of visual abilities in a patient who, following a right hemisphere stroke, had difficulty in combining parts of objects into a whole and in reading. Strikingly, her perceptual problems were accentuated when the objects moved or when she moved. Formal testing showed that her main deficits were in depth perception, various tasks of motion and object recognition of degraded stimuli. But low-level detection and discrimination of form and color were normal. Despite her deficits in visual motion and degraded static-object recognition, her visual recognition of 'biological motion' stimuli was normal. Structural magnetic resonance imaging revealed an infarct in the ventro-medial occipito-temporal region, extending ventro-laterally and leading to a 'kaleidoscopic disintegration of visible objects'. |
| spellingShingle | Vaina, L Cowey, A LeMay, M Bienfang, D Kikinis, R Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title | Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title_full | Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title_fullStr | Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title_full_unstemmed | Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title_short | Visual deficits in a patient with 'kaleidoscopic disintegration of the visual world'. |
| title_sort | visual deficits in a patient with kaleidoscopic disintegration of the visual world |
| work_keys_str_mv | AT vainal visualdeficitsinapatientwithkaleidoscopicdisintegrationofthevisualworld AT coweya visualdeficitsinapatientwithkaleidoscopicdisintegrationofthevisualworld AT lemaym visualdeficitsinapatientwithkaleidoscopicdisintegrationofthevisualworld AT bienfangd visualdeficitsinapatientwithkaleidoscopicdisintegrationofthevisualworld AT kikinisr visualdeficitsinapatientwithkaleidoscopicdisintegrationofthevisualworld |