Abstract
Two of three wild-caught cotton rats developed schedule-induced polydipsia on fixed-time (FT) food schedules in which both level of deprivation and length of the interpellet interval were varied systematically. One cotton rat first developed polydipsia on an FT 2-min schedule at 80% body weight; the other cotton rat did not develop polydipsia until placed on an FT 3-min schedule and body weight was reduced to 70%. These data indicate the importance of systematic variation of relevant variables before concluding that a given species does not display schedule-induced polydipsia. The adaptive significance of adjunctive behaviors is discussed.
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Magyar, R. L., Allen, R., Sicignano, A., & Malagodi, E. F. Schedule-induced polydipsia in the pigeon. Paper presented at the meeting of the Southeastern Psychological Association, Hollywood, Florida, 1977.
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These results were read at the 1979 meeting of the Psychonomic Society.
Drs. Porter and Hastings are with the Department of Psychology; Dr. Pagels is with the Department of Biology.
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Porter, J.H., Hastings, M.T. & Pagels, J.F. Schedule-induced polydipsia in the cotton rat (Sigmodon hispidus). Bull. Psychon. Soc. 16, 15–18 (1980). https://doi.org/10.3758/BF03337081
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DOI: https://doi.org/10.3758/BF03337081