Combining CSs associated with the same or different USs

Watt, Andrew and Honey, Robert Colin ORCID: https://orcid.org/0000-0001-6870-1880 1997. Combining CSs associated with the same or different USs. Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology 50 (4) , pp. 350-367. 10.1080/713932659

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Abstract

In three experiments, hungry rats received appetitive training with four stimuli, A, B, X, and Y. In each Experiment, A and B were paired with one unconditioned stimulus (US; e.g. food pellets) whereas X and Y were paired with a second US (e.g. sucrose). Subsequently, rats responded more vigorously to combinations of stimuli associated with different USs (A-Y & X-B) than to combinations of stimuli associated with the same US (A-B &X-Y; Experiments 1, 2, & 3). This effect was observed when the stimuli were presented simultaneously and during the second elements of serial compounds (Experiments 2 & 3). Moreover, combining CSs associated with different USs resulted in a more marked CR than combining CSs that had each been paired with both US1 and US2 (Experiment 3). These results suggest that the sensory properties of appetitive reinforcers have an important influence on performance.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Publisher:	Taylor & Francis
ISSN:	0272-4995
Last Modified:	21 Oct 2022 09:06
URI:	https://orca.cardiff.ac.uk/id/eprint/35343

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