title: Latent inhibition of conditioned disgust reactions in rats.
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.
authors.affiliation: Departamento de Psicología, University of Oviedo, Oviedo, Spain. mlopez@uniovi.es
authors.forename: Matías
authors.initials: M
authors.lastname: López
authors.forename: Patricia
authors.initials: P
authors.lastname: Gasalla
authors.forename: Mercedes
authors.initials: M
authors.lastname: Vega
authors.forename: Cheryl L
authors.initials: CL
authors.lastname: Limebeer
authors.forename: Erin M
authors.initials: EM
authors.lastname: Rock
authors.forename: Katharine J
authors.initials: KJ
authors.lastname: Tuerke
authors.forename: Holly
authors.initials: H
authors.lastname: Bedard
authors.forename: Linda A
authors.initials: LA
authors.lastname: Parker
mesh_terms: D000818:Animals; D001245:Association Learning; D001362:Avoidance Learning; D003214:Conditioning, Classical; D005793:Generalization, Psychological; D007266:Inhibition, Psychological; D018021:Lithium Chloride / Q000633:toxicity; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D012439:Saccharin; D013649:Taste
chemical_list: D012439:Saccharin; D018021:Lithium Chloride
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