Abstract
Six rats were reared under conditions in which they never had access to food and water simultaneously or in close succession. Six other rats had access to food and water together throughout the course of the experiment. Tests of differences between means for small samples showed that the two groups did not differ significantly in weight or in the amount of food and water consumed per day in the home cage. After 80 days of such rearing, the rats were reduced in weight and introduced in to a Skinner box in which water was freely available. On a fixed interval 50-sec schedule of food reinforcement, all rats displayed the characteristic behavioral aspects of schedule-induced polydipsia (SIP). This finding mitigates against explanations of SIP which relate alternation between eating and drinking in the test chamber to past feeding experience in the home cage.
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Hymowitz, N., Koronakos, C. The effects of a controlled eating and drinking history on the development of schedule-induced polydipsia. Psychon Sci 13, 261–262 (1968). https://doi.org/10.3758/BF03342514
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DOI: https://doi.org/10.3758/BF03342514