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Working Memory Training in Alcohol Use Disorder: A Randomized Controlled Trial.


ABSTRACT: BACKGROUND:Alcohol use disorder (AUD) is associated with cognitive deficits such as impaired executive functions, which are hypothesized to contribute to the progression of the disease and worsen treatment outcome. Training of working memory (WM) to improve cognitive functions and thereby reduce alcohol use has been proposed as a novel treatment strategy. METHODS:Patients with AUD (n = 50) who were recruited to an outpatient addiction clinic were randomized to receive 5 weeks of active WM training or control training. Participants had weekly follow-up visits, and all cognitive training sessions were done online at home. Primary outcomes were WM function and change in self-reported heavy drinking. Secondary outcomes were craving, other drinking outcomes, and performance on a range of neuropsychological tasks from the Cambridge Neuropsychological Test Automated Battery. RESULTS:The active training group demonstrated a significantly greater improvement in verbal WM compared with the control group. No statistically significant effect of training was found on the primary drinking outcome, but a trend was observed indicating that WM training reduces the number of drinks per drinking occasion. WM training had no statistically significant effect on any of the other neuropsychological tasks. CONCLUSIONS:Cognitive training can improve WM function in individuals with AUD, suggesting that such interventions are feasible to administer in this patient population. The results do not support an effect of WM training on heavy drinking or transfer effects to other cognitive domains. Future studies should evaluate WM training as an adjunct to evidence-based treatments for AUD to assess potential synergistic effects.

SUBMITTER: Khemiri L 

PROVIDER: S-EPMC6587824 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Working Memory Training in Alcohol Use Disorder: A Randomized Controlled Trial.

Khemiri Lotfi L   Brynte Christoffer C   Stunkel Angela A   Klingberg Torkel T   Jayaram-Lindström Nitya N  

Alcoholism, clinical and experimental research 20181121 1


<h4>Background</h4>Alcohol use disorder (AUD) is associated with cognitive deficits such as impaired executive functions, which are hypothesized to contribute to the progression of the disease and worsen treatment outcome. Training of working memory (WM) to improve cognitive functions and thereby reduce alcohol use has been proposed as a novel treatment strategy.<h4>Methods</h4>Patients with AUD (n = 50) who were recruited to an outpatient addiction clinic were randomized to receive 5 weeks of a  ...[more]

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