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Attention and memory in illicit amphetamine users

R McKetin¹, R P Mattick

¹National Drug and Alcohol Research Centre, University of New South Wales, Sydney, Australia.

Drug and Alcohol Dependence

|February 4, 1998

Summary

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This study found that amphetamine dependence severity correlates with impaired memory and attention in users. Cognitive functioning is significantly impacted by illicit amphetamine use.

Area of Science:

Neuroscience
Psychology
Addiction Research

Background:

Illicit amphetamine use is a significant public health concern.
Understanding the cognitive effects of amphetamine dependence is crucial for developing effective interventions.

Purpose of the Study:

To evaluate the cognitive functioning of individuals who use illicit amphetamines.
To determine the relationship between the severity of amphetamine dependence and cognitive performance.

Main Methods:

A neuropsychological test battery was administered to 78 amphetamine users.
Tests included the Wechsler Memory Scale-Revised (WMS-R), specific subtests of the Wechsler Adult Intelligence Scale-Revised (WAIS-R), and the National Adult Reading Test (NART).

Main Results:

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Amphetamine dependence severity was significantly associated with poorer performance on memory indices of the WMS-R.
Attention and concentration indices of the WMS-R also showed poorer performance correlating with dependence severity.

Conclusions:

Amphetamine dependence negatively impacts cognitive functions, particularly memory and attention.
Further research is needed to explore the contribution of concurrent drug use and other drug-related factors to these cognitive deficits.