Impulsivity partially mediates the association between reduced working memory capacity and alcohol problems
Impulsivity partially mediates the association between reduced working memory capacity and alcohol problems
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DOI：
10.1016/j.alcohol.2012.10.003
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发表时间：
2013-02-01
期刊：
影响因子：
2.3
通讯作者：
Finn, Peter R.
中科院分区：
文献类型：
--
作者：
Gunn, Rachel L.;Finn, Peter R.
尽管酒精使用障碍（AUDs）与冲动性人格特征和工作记忆容量（WMC）下降有关，但人们对它们之间相互关系的本质知之甚少。本研究旨在验证低WMC与冲动性人格和酒精问题相关的假设，以及冲动性人格在低WMC与酒精问题之间的中介作用。在一组年轻人样本（N = 474）中评估了冲动性人格、WMC和酒精问题的测量方法，这些年轻人酒精问题的严重程度差异很大，其中57%的人有酒精依赖。简单相关分析显示，WMC、冲动性人格特征和酒精问题均显著相关。结构方程模型（sem）显示冲动性部分介导了WMC与酒精问题之间的关联。虽然不能从这些横截面数据中确定方向性，但结果表明，减少的WMC可能会促进冲动，而冲动反过来又容易导致酒精问题。(C) 2013爱思唯尔公司版权所有。
Although alcohol use disorders (AUDs) have been associated with impulsive personality traits and reduced working memory capacity (WMC), less is known about the nature of their interrelationships. This study was designed to test the hypothesis that low WMC is associated with both impulsive personality and alcohol problems, and that impulsive personality mediates the association between low WMC and alcohol problems. Measures of impulsive personality, WMC, and alcohol problems were assessed in a sample of young adults (N = 474), that varied widely in severity of alcohol problems, 57% of whom had alcohol dependence. Simple correlations revealed that WMC, impulsive personality traits, and alcohol problems were all significantly related. Structural equation models (SEMs) showed that impulsivity partially mediated the association between WMC and alcohol problems. Although directionality cannot be determined from these cross-sectional data, the results suggest that reduced WMC may promote impulsivity, which in turn, predisposes to alcohol problems. (C) 2013 Elsevier Inc. All rights reserved.