Tests of two hypotheses of shock-right facilitation.

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Abstract
Performed 2 experiments to determine how shock for the correct response improves the performance of rats in visual discrimination learning. Ss were 46 and 91 Sprague-Dawley female rats. Exp. I tested but did not confirm K. F. Muenzinger's hypothesis of increased exposure to the critical cues. Exp. II tested the hypothesis of secondary reinforcement. Ss were pretrained in a runway to shock correlated with food reward. In a subsequent light-dark discrimination problem, those Ss shocked for correct responses did slightly but not significantly better than controls, while those Ss shocked for wrong ones did worse (p < .02), confirming the hypothesis. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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