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Department of Neurology, College of Medicine, University of Florida, Veterans Administration Medical Center, Gainesville, FL.
Agnosia is an abnormality of recognition that is not explained by sensory or cognitive disorders. We studied a patient who had combined visual-tactile agnosia without prosopagnosia after a left hemisphere infarct. Although he copied figures presented visually and he performed intramodal or crossmodal visual-tactile matches, he could not indicate recognition by either sight or touch. The lesion involved areas of the occipital and temporal lobes that may be important for human performance of tasks that require construction and application of meaning to percepts presented both visually and tactually.
Address correspondence and reprint requests to Dr. Heilman, Box J-236, Department of Neurology, College of Medicine, University of Florida, Gainesville, FL 32610.
Supported by funds from the Medical Research Service of the Veterans Administration.
Presented in part at the thirty-seventh annual meeting of the American Academy of Neurology, Dallas, TX, April 1985.
Accepted for publication October 22, 1985.
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