A developmental study of schedule-induced polydipsia in the rat |
| |
Authors: | Thomas J Reynolds John T Kenny John W Wright |
| |
Institution: | 1. Fordham University USA;2. Johns Hopkins University USA;3. Washington State University USA |
| |
Abstract: | Rats 30, 60, 90, and 120 days of age were fed 105 45-mg food pellets on a noncontingent VT 70-sec schedule during 14 daily 2-hr sessions. Every animal became polydipsic on this schedule when compared with a schedule in which 105 pellets were presented at the beginning of the session. Mean polydipsic ratios (schedule intake/control intake) ranged from 2.9–5.4. Water intakes (milliliters per 100g body weight) did not differ during the last five sessions as a function of age. The results are discussed with respect to the generality of the class of adjunctive behaviors. |
| |
Keywords: | Requests for reprints should be sent to Thomas J Reynolds Department of Psychology Fordham University Bronx New York 10458 |
本文献已被 ScienceDirect 等数据库收录! |