Inescapable shock and food-competition dominance in rats

Animal Learning & BehaviorPublished 1 June 1978Open access

Peter M. Rapaport, Steven F. Maier

DOI10.3758/bf03209595

Citations55

TL;DR

A deficit in a nonlearning task in which no aversive stimulus occurs is demonstrated, demonstrating that the inescapability of the shock caused at least part of the decrement observed in Experiment 1.

Abstract

Inescapable electric shock disrupts escape-avoidance learning in another apparatus. This study demonstrates a deficit in a nonlearning task in which no aversive stimulus occurs. In Experiment 1, inescapable shock lowered rats' dominance in a food-competition situation relative to restrained controls. In Experiment 2, inescapable shock lowered rats dominance in the same food-competition situation relative to a group that received the equivalent amount of escapable shock, demonstrating that the inescapability of the shock caused at least part of the decrement observed in Experiment 1. Experiment 3 does not find that inescapable shock caused a significant difference in food consumed or running time when the rats were tested alone, showing it unlikely that the dominance effects were caused by decreased hunger or reduced running following inescapable shock.

Keywords

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