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  • Title: Executive control in long-term abstinent alcoholics with mild to borderline intellectual disability: the relationship with IQ and severity of alcohol use-related problems.
    Author: van Duijvenbode N, Didden R, Korzilius HP, Trentelman M, Engels RC.
    Journal: Res Dev Disabil; 2013 Oct; 34(10):3583-95. PubMed ID: 23962605.
    Abstract:
    Deficits in executive control might be related to alcohol abuse in individuals with mild to borderline intellectual disability (MBID). The goal of the present study was to test the relationship between executive control (i.e., working memory capacity, inhibitory control and delay discounting), IQ and chronic alcohol use. Participants (N=40) were divided into four groups based on IQ and severity of alcohol use-related problems (heavy and light drinkers with and without MBID). They were all admitted to a psychiatric treatment facility and long-term abstinent at the time of testing. Contrary to the expectations, executive control was not consistently impaired among individuals with MBID. Results showed that working memory capacity did seem to be impaired, whereas inhibitory control and delay discounting did not. Moreover, there were no differences between heavy and light drinkers on any of the parameters and having a dual diagnosis (heavy drinkers with MBID) did not result in additive negative effects on executive control. It is suggested that alcohol-related cognitive impairment is temporary and decreases over time after cessation of drinking.
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