Latent inhibition of conditioned disgust reactions in rats

López, Matías, Gasalla, Patricia, Vega, Mercedes, Limebeer, Cheryl L., Rock, Erin M., Tuerke, Katharine, Bedard, Holly and Parker, Linda A. 2010. Latent inhibition of conditioned disgust reactions in rats. Learning and Behavior 38 (2) , pp. 177-186. 10.3758/LB.38.2.177

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Abstract

The present experiments, using the latent inhibition (LI) paradigm, evaluated the effect of nonreinforced exposure to saccharin on the acquisition of an LiCl-induced saccharin aversion as measured by conditioned disgust reactions in the taste reactivity test and conditioned taste avoidance in a consumption test. When rats were preexposed to saccharin by bottle exposure (Experiments 1 and 3), LI was evidenced only by conditioned taste avoidance (bottle testing), but not by conditioned disgust reactions (intraoral [IO] testing). On the other hand, when rats were preexposed to saccharin by IO infusion (Experiments 2 and 3), LI was evidenced only by conditioned disgust reactions, but not by conditioned taste avoidance. Experiment 4 showed that LI of conditioned disgust reactions does not appear to be affected by a context shift from preexposure to testing phases. These results show that the expression of LI of both conditioned taste avoidance and conditioned disgust reactions depends critically on a common method of flavor exposure during preexposure and testing.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology Neuroscience and Mental Health Research Institute (NMHRI)
Publisher:	Springer Verlag (Germany)
ISSN:	1543-4494
Date of Acceptance:	4 December 2009
Last Modified:	03 Sep 2020 15:19
URI:	https://orca.cardiff.ac.uk/id/eprint/134615

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