Effect of irrelevant thirst motivation on a response learned with food reward.

Abstract

"Four groups of rats were trained under hunger motivation to push a panel for food reward. One group was given extinction trials under hunger motivation, one while satiated, and one under thirst motivation. The fourth group was deprived of water like that thirst group, but was allowed to drink before the extinction trials…. The results are interpreted as implying that the positive relation previously found between hours of water deprivation and the strength, during extinction, of a response learned with food reward may be due to increasing strength of the hunger drive." 20 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved)