Document Detail


Learned food-cue stimulates persistent feeding in sated rats.
MedLine Citation:
PMID:  22721906     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cues that predict food can stimulate appetite and feeding independent of physiological hunger. How long such effects might last is currently unknown. Here we began to characterize long-term effects in a rodent model of cue-potentiated feeding. Rats were conditioned to associate a tone with food pellets distinct from their regular laboratory chow, and then were tested along with controls for food consumption following tone presentations. In Experiment 1, rats were tested under sated or food-deprived conditions to determine whether fasting would augment cue-driven feeding. Rats in the control group regulated intake based on physiological state, while conditioned rats consumed similar large amounts of food regardless. Experiment 2 tested the durability of cue-potentiated feeding to repeated testing in sated rats. We observed robust cue-potentiated feeding during the first two tests, while in the third and fourth tests both groups ate similar large amounts of pellets. In both experiments the conditioned tone-cue induced binge-like consumption of the cued food and persistent feeding for the duration of 4-h tests. Rats then failed to adjust daily chow consumption to account for their increased intake post-cue. In summary, brief cue priming stimulated substantial intake in sated states that was behaviorally uncompensated for by homeostatic mechanisms.
Authors:
Christina J Reppucci; Gorica D Petrovich
Related Documents :
8232416 - Galactofuranose-containing glycoconjugates of epimastigote and trypomastigote forms of ...
21417966 - Regulation of toxin production by bacillus cereus and its food safety implications.
11066716 - Retail health marketing: evaluating consumers' choice for healthier foods.
22713906 - Antagonism of sigma-1 receptors blocks compulsive-like eating.
17765336 - Sex differences in asymmetry of the planum parietale in chimpanzees (pan troglodytes).
24295926 - Anticipation of a psychosocial stressor differentially influences ghrelin, cortisol and...
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2012-06-18
Journal Detail:
Title:  Appetite     Volume:  59     ISSN:  1095-8304     ISO Abbreviation:  Appetite     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-08-27     Completed Date:  2013-01-16     Revised Date:  2013-10-17    
Medline Journal Info:
Nlm Unique ID:  8006808     Medline TA:  Appetite     Country:  England    
Other Details:
Languages:  eng     Pagination:  437-47     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Psychology, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Conditioning (Psychology)
Cues*
Eating / physiology
Feeding Behavior*
Food Deprivation
Hunger
Learning / physiology*
Male
Rats
Rats, Long-Evans
Grant Support
ID/Acronym/Agency:
DK085721/DK/NIDDK NIH HHS; K01 MH067252/MH/NIMH NIH HHS; MH67252/MH/NIMH NIH HHS; R01 DK085721/DK/NIDDK NIH HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Molecular regulation of interferon antiviral response in fish.
Next Document:  Human Sensory Preconditioning In A Flavor Preference Paradigm.