ECS in one-trial appetitive learning of rats: Retention and amnesia.

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Abstract
Conducted 4 experiments with 214 male hooded rats to assess the kind and degree of amnesia induced by ECS following a 1-trial appetitive learning experience. Exp I (n = 30) and II (n = 60) show that although there is a definite amnesia that cannot be explained as an artifact of ECS-induced aversiveness, some memory of the experience does survive the ECS. Exp III (n = 96) suggests that this memory is for the novelty aspects of the learning experience, while there is at least a partial amnesia for the positive reinforcement received. Results of a 4th experiment (n = 28) suggest that the ECS has the effect of interrupting or preventing the classification of a novel object as reinforcing or nonreinforcing. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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