Abstract
Two food-deprived white rats were reinforced with 45-mg Noyes pellets after simple fixed intervals of 15, 30, 60, and 120 sec and after alternating 15- and 120-sec intervals. p]“Postpellet” drink duration varied directly with interpellet intervals in the simple fixed-interval case. In the alternating-interval case, postpellet drink durations (or tube contacts) were greater in 120-sec than in 15-sec intervals. Schedule-induced drink durations appear to be controlled by the probability of availability of food.
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Colotla, V.A., Keehn, J.D. & Gardner, L.L. Control of schedule-induced drink durations by interpellet intervals. Psychon Sci 21, 137–139 (1970). https://doi.org/10.3758/BF03331851
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DOI: https://doi.org/10.3758/BF03331851