Document Detail

The relationship between food reward and satiation revisited.
MedLine Citation:
PMID:  15234596     Owner:  NLM     Status:  MEDLINE    
The postingestive satiating action of food is often viewed as producing a positive affective state that rewards eating. However, in an early test of this idea, Van Vort and Smith [Physiol. Behav. 30 (1983) 279] reported that rats did not learn to prefer a food that was "real-fed" and satiating over a food that was "sham-fed" and not satiating. Subsequent investigators obtained similar findings with concentrated nutrient sources. With dilute nutrient sources, however, rats learned to prefer the real-fed to the sham-fed food. These and other findings demonstrate that nutrients have rewarding postingestive effects that enhance food preferences via a conditioning process. These reward effects appear separate from the satiating actions of nutrients, which may actually reduce food reward. Food intake and preference are controlled by a complex interaction of positive and negative signals generated by nutrients in the mouth and at postingestive sites.
Anthony Sclafani; Karen Ackroff
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  Physiology & behavior     Volume:  82     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-07-05     Completed Date:  2004-10-25     Revised Date:  2014-03-25    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  89-95     Citation Subset:  IM    
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MeSH Terms
Conditioning, Operant
Eating / physiology*
Feeding Behavior / physiology
Food Preferences / physiology*
Satiation / physiology*
Stomach / innervation
Grant Support

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