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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-7-17
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pubmed:abstractText |
A new hypothesis (and supporting data) provides a solution to the 25-year-old paradox whereby positively reinforcing drugs of abuse also support a conditioned taste aversion (CTA). The results show that unlike LiCl-induced CTAs, morphine- and cocaine-induced suppression of conditioned stimulus (CS) intake depends on the rewarding properties of the gustatory CS. This finding argues against the long-standing CTA interpretation in favor of a new reward comparison account. That is, rats decrease intake of a gustatory CS following taste-drug pairings because the value of the CS is outweighed by that of a highly reinforcing psychoactive drug. Suppression of CS intake, then, is a consequence of the well-documented positive reinforcing, rather than the hypothetical aversive, properties of drugs of abuse.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0735-7044
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
111
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
129-36
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9109631-Animals,
pubmed-meshheading:9109631-Association Learning,
pubmed-meshheading:9109631-Avoidance Learning,
pubmed-meshheading:9109631-Cocaine,
pubmed-meshheading:9109631-Conditioning, Classical,
pubmed-meshheading:9109631-Dose-Response Relationship, Drug,
pubmed-meshheading:9109631-Drinking,
pubmed-meshheading:9109631-Injections, Intraperitoneal,
pubmed-meshheading:9109631-Injections, Subcutaneous,
pubmed-meshheading:9109631-Lithium Chloride,
pubmed-meshheading:9109631-Male,
pubmed-meshheading:9109631-Morphine,
pubmed-meshheading:9109631-Motivation,
pubmed-meshheading:9109631-Rats,
pubmed-meshheading:9109631-Rats, Sprague-Dawley,
pubmed-meshheading:9109631-Street Drugs,
pubmed-meshheading:9109631-Taste
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pubmed:year |
1997
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pubmed:articleTitle |
Conditioned taste aversions and drugs of abuse: a reinterpretation.
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pubmed:affiliation |
Department of Behavioral Science, College of Medicine, The Pennsylvania State University, Hershey 17033, USA. psg6@psu.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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