Operant behavior and drinking suppression in vasopressin-deficient rats (Brattleboro strain).


A group of Brattleboro rats homozygous for diabetes insipidus (DI) and a group of normal Long-Evans (LE) rats were deprived of water and tested on two tasks thought to measure reinforcement strength: a progressive-ratio schedule in an operant chamber and a quinine-induced drinking-suppression task. Since water-deprived DI rats are in more severe negative… (More)


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