NONVERBAL COGNITIVE AND CONSTRUCTIONAL PERFORMANCE IN APHASICS

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  • 失語症者の非言語的認知・構成能力について

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Abstract

In this study, the performance of 117 aphasic patients was compared respectively with that of 24 right and 34 left nonaphasic hemiplegic patients on three nonverbal tests, the Kohs' Block Design Test, the Raven's Standard Progressive Matrices and WAIS Performance Subtests. Aphasia was assesed using the Nanasawa Diagnostic Aphasia Test and the severity was rated in four grades, ‹4› is the mildest and ‹1› the most severe.<br>The results of the analyses are summarized as follows:<br>1) The group involved all aphasic patients scored significantly lower on many nonverbal tests than the two groups of nonaphasic hemiplegic patients.<br>2) When the aphasics were rated in four grades, the mildest group, ‹4› was not inferior in all the nonverbal tests than the two nonaphasic groups. But the more severe aphasic groups, ‹3›-‹1› were significantly inferior in many tests than both the mildest and the nonaphasic groups.<br>3) In the rather mild aphasic group, ‹3›, there were some patients who obtained the lowest scores on the nonverbal tests, and conversely there were some who obtained the higest scores in the most severe aphasic group, ‹1›. This showed that the verbal and the nonverbal abilities were not always correlated.<br>These findings were discussed from the view points of the verbal mediation in the nonverbal tests and the locus or extent of the brain damage.

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