Processing of visual syntax in a globally aphasic patient |
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Authors: | M Weinrich R D Steele G S Carlson M Kleczewska R T Wertz E Baker |
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Affiliation: | Department of Neurology, Palo Alto VA Medical Center, CA 94304. |
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Abstract: | A globally aphasic patient was trained on a computerized visual communication system. His ability to comprehend reversible locative prepositional phrases after training was studied and compared with the performance of Broca's aphasics on a similar task. This patient's ability to generalize symbols for actions was also investigated. The results demonstrate our patient's capacity to master a formal visual syntax in the absence of natural language and illustrate how this capacity may be used successfully in a visual communication system. A problem in generalizing symbols for actions is demonstrated, suggesting that certain heuristic and cueing capabilities in the approach may be helpful. |
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