Monash Alfred Psychiatry Research Centre, The Alfred and Monash University, Central Clinical School, Prahran, Victoria, Australia.
Arch Clin Neuropsychol. 2014 Feb;29(1):26-37. doi: 10.1093/arclin/act090. Epub 2013 Dec 13.
Alcohol dependence, a chronic relapsing disorder, is characterized by an impaired ability to regulate compulsive urges to consume alcohol. Very few empirical studies have examined the presence of these executive deficits, how they relate to craving, and the enduring nature of these deficits during abstinence. As such, the current study aimed to characterize these cognitive deficits within a sample of 24 alcohol-dependent participants post-detoxification and 23 non-alcohol-dependent participants. Participants were administered the Sustained Attention to Response Task to measure response inhibition and sustained attention and the Random Number Generation Task to examine executive deficits. Correlations between cognitive performance and clinical measures of alcohol dependence were examined. As predicted, the alcohol-dependent group exhibited poorer performance across the domains of response inhibition, executive function, and attentional control. Cognitive performance was related to clinical measures of craving and years of alcohol consumption, whereas the duration of abstinence was not associated with improved cognitive performance. These findings highlight the need for therapeutic strategies to target these enduring neurocognitive deficits in improving the treatment of alcohol dependence.
酒精依赖是一种慢性复发性疾病,其特征是难以控制饮酒的强迫冲动。很少有实证研究探讨这些执行功能缺陷的存在、它们与渴求的关系,以及在戒断期间这些缺陷的持久性。因此,本研究旨在在 24 名酒精依赖参与者和 23 名非酒精依赖参与者的样本中描述这些认知缺陷。参与者接受了持续注意反应任务来测量反应抑制和持续注意力,以及随机数生成任务来检查执行功能缺陷。还检查了认知表现与酒精依赖的临床测量之间的相关性。正如预测的那样,酒精依赖组在反应抑制、执行功能和注意力控制等方面的表现较差。认知表现与渴求和饮酒年限的临床测量有关,而戒断时间与认知表现的改善无关。这些发现强调了需要有治疗策略来针对这些持久的神经认知缺陷,以改善对酒精依赖的治疗。