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Drug Alcohol Depend. 1997 Dec 15;48(3):235-42.

Attention and memory in illicit amphetamine users.

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National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia.


The purpose of this study was to assess cognitive functioning in a group of illicit amphetamine users. A neuropsychological test battery (Wechsler Memory Scale-Revised (WMS-R) and the digit symbol, block design and vocabulary subtests of the Wechsler Adult Intelligence Scale-Revised (WAIS-R) and the National Adult Reading Test (NART)) was administered to 78 amphetamine users (mean age = 22.5 years; 46 males, 33 females). Severity of amphetamine dependence was found to be associated with poorer performance on both memory and attention/concentration indices of the WMS-R. The relative contribution of amphetamine dependence, concurrent drug use and other drug related factors to neuropsychological functioning are discussed.

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