Document Detail

Role of monkey hippocampus in recognition of food and nonfood.
MedLine Citation:
PMID:  1959046     Owner:  NLM     Status:  MEDLINE    
To investigate the role of the hippocampal formation (HF) in feeding behavior, single neuron activity in the monkey HF was recorded during performance of an operant task that included food/nonfood discrimination, drinking, and active avoidance. Of 837 neurons recorded in the HF, 155 responded to the sight of one or more objects. Of these, 82 responded to the sight of different objects with different response magnitudes, and some of these 82 responded predominantly to food-related (rewarding) objects or nonfood, aversive objects. The magnitude of response of neurons that responded predominantly to food was not necessarily correlated with the order of animal's preference for those kinds of food. For some neurons that responded predominantly to food or nonfood, effects of extinction or reversal learning on the neuronal responses were tested, and most of the neurons tested maintained their original responsiveness even after behavioral extinction or reversal learning was accomplished. The results suggest that these HF neurons may be involved in preservation of past information concerning food or nonfood.
R Tamura; T Ono; M Fukuda; H Nishijo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brain research bulletin     Volume:  27     ISSN:  0361-9230     ISO Abbreviation:  Brain Res. Bull.     Publication Date:    1991 Sep-Oct
Date Detail:
Created Date:  1992-01-09     Completed Date:  1992-01-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7605818     Medline TA:  Brain Res Bull     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  457-61     Citation Subset:  IM    
Department of Physiology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
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MeSH Terms
Avoidance Learning / physiology
Discrimination (Psychology) / physiology*
Hippocampus / physiology*
Macaca / physiology*
Neurons / physiology
Reaction Time
Reversal Learning / physiology
Visual Perception / physiology

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

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