The role of shock in reinforcement.

Abstract
Intensive study of the development of conditioned avoidance behavior to electric shock in young goats under conditions (1) of inevitable shock (the conventional Pavlovian scheme), (2) "shock avoidable by a given consistent action and (3) random shock" is reported. Uniform reactions were acquired quickly by the "avoidable shock" group, whereas a high degree of variability and "continuous trial and error" accompanied the training of the inevitable and random shock groups. Implications for current two-factor and other learning theories are discussed. 22 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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