| Abstract: | ![]()
Studied 188 male Long-Evans hooded rats. Three groups were made ill following the ingestion of 1 of 3 intensities of salt taste and then were tested several times for aversions to each of the 3 intensities after this single training trial, yielding a 3 by 3 factorial design. ANOVA from this design revealed a significant positive effect on degree of aversion of both training intensity and testing intensity, and a significant interaction between these 2 intensity variables. The interaction was further analyzed into a component implying a multiplicative relationship between training intensity and testing intensity in determining strength of aversion, and into a component interpreted as indicating a decrement of the aversion when tested with intensities other than the training intensity. Results suggest a lawfulness of stimulus–response relationships comparable to those found in studies employing more typical conditioned responses. Previous conditioning studies, however, have demonstrated only the effect of conditioned stimulus intensity on "performance" (testing intensity effect), not on "learning" (training intensity effect). (29 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
