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Alcohol Consumption and Cognitive Functioning in Male Social Drinkers

This study was designed to investigate correlation between drinking variables and cognitive functioning in male social drinkers. Fifty-one male social drinkers were divided into two groups, heavy drinkers and non-heavy drinkers. They were asked about drinking history with drinkinghistory questionnaire(current frequency of drinking per year, current quantity per drinking occasion, current maximum quantity per drinking occasion, and total lifetime consumption). And then they performed cognitive performance tests(digit span(DS), digit symbol substitution test (DSST), trail making test(TMT), and multitrial free recall test ； memory, learning, and organization). The data were analyzed by correlating drinking variables and cognitive test scores. The results were as follows ； 1) Current frequency of drinking per year was significantly correlated with performance on DSST(p < .001). 2) Current quantity per drinking occasion was significantly correlated with performance on memory(p < .001)，organization in multitrial free recall test(p <〔 .01). 3) Current maximum quantity per drinking occasion was significantly correlated with performance on memory, organization in multitrial free recall test(p < .001). 4) Total lifetime consumption was significantly correlated with performance on DSST, TM丁， memory in multitrial free recall test(p < .01)，organization in multitrial free recall test(p〈 .05). 5) Decreased cognitive performance was strongest in heavy drinkers but also evident in nonheavy drinkers. In conclusion, this study suggests that decreased cognitive performance is significantly correlated with increased current frequency of drinking per year, current quantity per drinking occasion, current maximum quantity per drinking occasion, ant total lifetime consumption