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Articles
Ethanol Preference in the Rat as a Function of Photoperiod
1 Department of Experimental Pharmacology, Southwest Foundation for Research and Education, San Antonio, Texas 78228
Ethanol-drinking was induced in laboratory rats that were maintained in total darkness. The established preference for ethanol was not reversed under conditions of constant illumination although a decrease in ethanol intake occurred. Administration of melatonin to rats maintained under "normal" photoperiods (9 hours of darkness during a 24-hour day) also induced ethanol-drinking.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)