PMID: 2485286Jan 1, 1989Paper

Performance deficits on tests of problem solving in alcoholics: cognitive or motivational impairment?

Journal of Substance Abuse
K W SchaefferA L Errico

Abstract

This study tests the hypothesis that the performance deficits of alcoholics on tests of problem-solving abilities are due to impairment in motivation. The Conceptual Level Analogy Test and the Levine Hypothesis Test were administered to 40 sober middle-aged male alcoholic and 30 nonalcoholic individuals in a 2 x 2 [Group (alcoholic, nonalcoholic) by Monetary Incentive (incentive, no incentive)] between-subjects covariance design. The motivational manipulation was a performance-contingent monetary incentive. On the Levine test alcoholics performed less well than nonalcoholics but there were no incentive effects. On the analogy test, surprisingly, alcoholics did not differ from nonalcoholics in performance (probably due to the feedback necessitated by use of a performance-contingent incentive) although incentive effects were found across groups. However, there were no significant Group by Incentive interactions on either test or on self-report questionnaires of subjective states (e.g., effort expended) experienced during the tests. Thus, no evidence was found to support the impaired motivation hypothesis. The cognitive hypothesis remains as the most credible hypothesis to account for the performance deficits of alcoholics on test...Continue Reading

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