Intellectual Functions and Dexterity during Hangover. Experiments after Intoxication with Brandy and with Beer

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Abstract
A battery of tests intended to measure intellectual functions (space, number, and perceptual speed factors) and dexterity was administered to a group of 38 experimental subjects and a comparable group of 45 controls (healthy male university students). Parallel tests were performed in basic, brandy intoxication, brandy hangover, beer intoxication, and beer hangover situations. The experimental subjects received about 1.4 g of absolute alcohol per kg of body weight during 2.5 hours. The hangover sessions were held about 14 hours latter. A significant impairment occurred in all performance scores during the intoxication sessions; no difference was found between the brandy and beer experiments. The brandy hangover test scores were invariably almost as good as those of control subjects. During the beer hangover there was some impairment on difficult space factor tests, while dexterity was significantly improved. The results are discussed on the basis of those obtained in studies of fatigue and mental stress.

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