Abstract
Four white rats were trained to drink 9% (ν/ν) ethanol by programming drinking to change the frequency of food pellet delivery from once every 2 min to once every 15 sec on the average. When water and ethanol were both available and only ethanol drinking changed the frequency of pellet delivery, the animals switched from drinking water on the preferred side to drinking ethanol on the nonpreferred side.
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Keehn, J.D., Coulson, G.E. Ethanol consumption by rats on a differential probability of reinforcement schedule. Psychon Sci 19, 283–284 (1970). https://doi.org/10.3758/BF03328818
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DOI: https://doi.org/10.3758/BF03328818