Document Detail

Mechanism for food avoidance learning in the central pattern generator of feeding behavior of Pleurobranchae californica.
MedLine Citation:
PMID:  16593706     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Food-avoidance conditioning in the mollusk Pleurobranchaea results in suppression of the feeding response to food stimuli. In conditioned animals, identified interneurons of the central pattern generator (CPG) for feeding behavior, the Int-2s, respond to a food stimulus with greater and more long-lasting excitation than controls. Enhanced Int-2 responsiveness to food stimuli is associated with markedly heightened Int-2 excitability. Sustained activity in the Int-2s arrests motor output of the oscillatory CPG in the protraction/retraction movement cycle of feeding through tonic excitation of a population of retractor interneurons and inhibition of protractors. The CPG locus of the learning mechanism is permissive of sensory excitation of alternative behavior and leaves the possibility open for release of the suppressed behavior in a fully aroused state.
J A London; R Gillette
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  83     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  1986 Jun 
Date Detail:
Created Date:  2010-06-30     Completed Date:  2010-06-30     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4058-62     Citation Subset:  -    
Department of Physiology and Biophysics, 524 Burrill Hall, 407 South Goodwin Avenue, University of Illinois, Urbana, IL 61801.
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