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Reduced palatability in drug-induced taste aversion: II. Aversive and rewarding unconditioned stimuli.

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Title: Reduced palatability in drug-induced taste aversion: II. Aversive and rewarding unconditioned stimuli.
Author(s): Arthurs, Joe; Lin, Jian-You; Amodeo, Leslie Renee; Reilly, Steve
Subject(s): microstructure cluster size morphine amphetamine incentive contrast rats
Abstract: Drugs of abuse are known to reduce intake of a taste conditioned stimulus (CS), a behavioral response sometimes seen as paradoxical because the same drugs also serve as rewards in other behavioral procedures. In the present study we compared patterns of intake and palatability (assessed using microstructural analysis of licking) for a standard saccharin CS paired with: lithium chloride, morphine, amphetamine, or sucrose. We found that morphine and amphetamine, like lithium-induced illness, each suppressed CS intake and caused a reduction in saccharin palatability. Sucrose, a rewarding stimulus, did not reduce the palatability of the saccharin CS. We interpret these finds as evidence that drugs of abuse induce conditioned taste aversions.
Issue Date: 2012-06
Publisher: American Psychological Association
Citation Info: Arthurs, J., J. Y. Lin, et al. (2012). "Reduced Palatability in Drug-Induced Taste Aversion: II. Aversive and Rewarding Unconditioned Stimuli." Behavioral Neuroscience 126(3): 433-444. DOI: 10.1037/a0027676
Type: Article
Description: American Psychological Association. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record. The original publication is available at; DOI:10.1037/a0027676
ISSN: 0735-7044
Sponsor: National Institute of Deafness and Other Communication Disorders DC06456
Date Available in INDIGO: 2012-09-10

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