Document Detail


Reinforcer-specificity of appetitive and consummatory behavior of rats after Pavlovian conditioning with food reinforcers.
MedLine Citation:
PMID:  17346758     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined the reinforcer-specificity of Pavlovian conditioning in the control of appetitive and consummatory behaviors in Pavlovian-to-instrumental transfer, cue-potentiated eating, and devaluation procedures. Rats received pairings of one conditioned stimulus with sucrose and another conditioned stimulus with maltodextrin. In Experiment 1, rats were also trained to earn sucrose for one instrumental response and maltodextrin for another. In a transfer test, the Pavlovian cues enhanced the rate of instrumental responding more when the food reinforcer predicted by the instrumental response and the Pavlovian cue were consistent than when they were inconsistent, but both cues enhanced both responses. In Experiment 2, sated rats' consumption of each food was potentiated in the presence of a cue for that food, but not in the presence of a cue for the other food. In Experiment 3, one food was devalued by pairing it with lithium chloride, prior to testing food consumption and food-cup directed behaviors. The food cues selectively controlled food-cup related behaviors, regardless of the presence of the devalued or nondevalued foods in the food cup. Together, these results are consistent with the view that conditioned cues modulate appetitive and consummatory behaviors with increasing levels of specificity. The closer an action comes to ingestion, the more it is controlled by sensory properties conveyed by learned cues. These data are discussed in the context of allostatic regulation of food foraging and intake.
Authors:
Ezequiel M Galarce; Hans S Crombag; Peter C Holland
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2007-02-08
Journal Detail:
Title:  Physiology & behavior     Volume:  91     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-27     Completed Date:  2007-07-03     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  95-105     Citation Subset:  IM    
Affiliation:
Department of Psychological and Brain Sciences, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, United States. galarce@jhu.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Appetitive Behavior / physiology*
Avoidance Learning / physiology
Conditioning, Classical / physiology*
Conditioning, Operant / physiology
Consummatory Behavior / physiology*
Cues
Eating / physiology
Food*
Male
Polysaccharides
Rats
Rats, Long-Evans
Reinforcement (Psychology)
Satiation / physiology
Sucrose
Grant Support
ID/Acronym/Agency:
MH53667/MH/NIMH NIH HHS; MH65879/MH/NIMH NIH HHS; R01 MH065879-05/MH/NIMH NIH HHS
Chemical
Reg. No./Substance:
0/Polysaccharides; 57-50-1/Sucrose; 9050-36-6/maltodextrin
Comments/Corrections

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