Ethanol-reinforced responding and intake as a function of volume per reinforcement.
Number of ethanol reinforcements obtained and ethanol intake (mg/100 g body weight/hr) of 3 food-deprived rats were measured over a range of dipper volumes during daily 1 hr sessions. The rats had free access to water in their home cages between sessions. Ethanol concentration was 8 percent (W/V); each response was reinforced. As the volume per reinforcement increased, ethanol intake tended to increase while the number of reinforcements obtained decreased systematically. Responding was maintained by 8 percent (W/V) ethanol but not by water.
D000428:Alcohol Drinking; D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects; D000431:Ethanol / Q000494:pharmacology*; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D013997:Time Factors; D014867:Water
D014867:Water; D000431:Ethanol