Deficit in cognitive shifting ability in patients with obsessive-compulsive disorder

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      Reports on cognitive test deficits in patients with obsessive-compulsive disorders and interpretations of the underlying dysfunction have been conflicting. In the present study, 15 obsessive-compulsive patients were compared with 15 matched normal controls on three types of test sensitive to: spatial ability, ability to shift cognitive set, and combinations of both. Performance deficits as compared with controls were shown in Block Design, the Short Wisconsin Card Sort, the Word Fluency Test, and on the Money Road Map Test. No deficits were present on a number of other measures. The pattern of results is interpreted partly as revealing deficits in ability to shift cognitive set, more particularly with nonverbal material.
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