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Shock induced ethanol consumption in rats


, : Shock induced ethanol consumption in rats. Pharmacology Biochemistry and Behavior 6(1): 107-115

Two experiments are presented which describe the temporal and volumetric changes in ethanol consumption by rats exposed to recurring schedules of inescapable random shock. The animals in the 1st experiment, which had a choice between ethanol and water, increased their voluntary ethanol consumption immediately after the shock schedule. The postshock changes occurred with both 5% and 10% vol/vol ethanol, were specific to the presence of shock and were not reflected by measures of total daily ethanol intake. In the 2nd experiment the rats were exposed to extended 22 h stress sessions, during which each animal had 4 simultaneous fluid choices available: water, saccharin 0.1% wt/vol, ethanol 5% vol/vol, and ethanol 10% vol/vol. Temporal intake patterns for both 5% and 10% ethanol showed pronounced peaks for the interval immediately following the shock schedule. A shift of intake from 5% to 10% ethanol was also demonstrated with increasing time under shock, while saccharin and water intake decreased. The results are interpreted as a relationship between voluntary ethanol intake and escape from the consequences of stress.

US$19.90

PMID: 850685

DOI: 10.1016/0091-3057(77)90166-6


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