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Skills Performance at Low Blood Alcohol Levels

Herbert Moskowitz, Marcelline M. Burns, Allan F. Williams

The effect of low blood alcohol levels (BALs) on driving skills performance was examined experimentally. Ten moderate drinkers were tested on divided-attention and information processing tasks at BALs of zero, 15, 30, 45 and 60 mg\/dl. All response measures showed evidence of impairment beginning at 15 mg\/dl and increasing impairment with increasing BALs. Thus there is no evidence that low or very low BALs improve performance on driving-related skills, as has sometimes been suggested.