The effects of alcohol ingestion on human performance.
Marlowe, Gilbert Murray
Neil, Douglas E.
Wyatt, Thomas A.
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This experiment investigated the effects of alcohol ingestion on three measures of human performance: (a) information processing time, (b) reaction time and (c) movement time. The relationship between the alcohol effects and the drinking history of the subjects was also examined in order to determine the existence of any alcohol adaptation. In addition, the influence of alcohol on manifest anxiety was investigated. The analyses of variance and correlation analysis which were performed showed that dosage had a significant effect on information processing time and reaction time but had no significant effect on movement time. The rate of ingestion, except at the highest rate of 3 oz/35 min, did not significantly contribute to the effects of dosage. There was no significant correlation between alcohol effects and drinking history or manifest anxiety changes. The results of this study indicate that, even at small dosages, alcohol has a great effect on cognitive ability. It was also shown that alcohol effects psychomotor performance to a lesser degree and has little effect on neuromuscular performance.
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