Spillmann, L. and Laskowski, W. and Lange, K. W. and Kasper, E. and Schmidt, D. (2000) Stroke-blind for colors, faces and locations: Partial recovery after three years. RESTORATIVE NEUROLOGY AND NEUROSCIENCE, 17 (2-3). pp. 89-103. ISSN 0922-6028, 1878-3627
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Purpose. To study and follow-up achromatopsia, prosopagnosia, and topographagnosia in a patient who suffered a bilateral stroke of the posterior cerebral arteries. Methods. Ophthalmological, neuropsychological and neuroradiological examinations were conducted over a span of 3 years to assess the amount of brain damage and look for signs of functional recovery. Results. After the onset of achromatopsia, perception of the color green re-appeared first, followed by red, yellow, and brown. Blue which had appeared entirely black was last to return. While reading and color naming have largely recovered, color discrimination after three years remains poor especially in dim lighting. Similarly, with prosopagnosia, while the patient has learn to identify people (including photographs) by individual features, his ability to perceive and recognize faces and facial expressions holistically remains severely impaired. Recognition of streets, houses, and topographical layouts also continues to be affected, while the perception of speed and distance has somewhat improved. Perimetry further suggests a mild improvement of the superior hemianopia in his visual fields. Conclusions. Although major deficits in color, face and place perception remain, some functions impaired by the stroke have returned paralleling a partial recovery from the brain lesion as demonstrated by NMR.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CEREBRAL-ACHROMATOPSIA; PROCESSING IMPAIRMENTS; DIFFERENTIAL-DIAGNOSIS; EXAMINATION STRATEGY; FACIAL RECOGNITION; VISUAL AGNOSIA; PROSOPAGNOSIA; DAMAGE; CORTEX; BRAIN; achromatopsia; prosopagnosia; topographical agnosia; recovery; stroke |
| Subjects: | 100 Philosophy & psychology > 150 Psychology 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Human Sciences > Institut für Psychologie > Lehrstuhl für Psychologie III (Biologische, Klinische und Rehabilitationspsychologie) - Prof. Dr. Klaus W. Lange |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Jul 2022 10:21 |
| Last Modified: | 01 Jul 2022 10:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43056 |
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