Document Detail


Pharmacological manipulations of food protection behavior in rats: evidence for dopaminergic contributions to time perception during a natural behavior.
MedLine Citation:
PMID:  16890923     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Operant procedures combined with pharmacological manipulations have implicated a role for the dopaminergic system in the perception and production of temporal intervals. Because studies have suggested that animals use temporal information to organize food protection behavior, the current study investigates whether dopaminergic systems are involved in timing during this natural behavior. The experiment examined the influence of a dopaminergic agonist (amphetamine) and an antagonist (haloperidol) on food protection behavior initiated to avoid theft by a conspecific. Amphetamine increased the time spent dodging and decreased the time spent bracing during the consumption of a hazelnut. On the other hand, haloperidol decreased the time spent dodging while showing no systematic changes in bracing. Topographic and kinematic analyses of rat movement conflicted with motivational, motoric, and social accounts of drug-induced changes in food protection behavior organization. These observations provide evidence that rats use temporal information to organize movements in the natural behavior of protecting food from theft by a conspecific, and this organization is influenced by both a dopaminergic agonist and an antagonist.
Authors:
Douglas G Wallace; Patricia S Wallace; Evelyn Field; Ian Q Whishaw
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-08-07
Journal Detail:
Title:  Brain research     Volume:  1112     ISSN:  0006-8993     ISO Abbreviation:  Brain Res.     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-09-18     Completed Date:  2006-11-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0045503     Medline TA:  Brain Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  213-21     Citation Subset:  IM    
Affiliation:
Psychology Department, Northern Illinois University, De Kalb, IL 60115-2892, USA. dwallace@niu.edu
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MeSH Terms
Descriptor/Qualifier:
Agonistic Behavior / drug effects,  physiology*
Amphetamine / pharmacology
Analysis of Variance
Animals
Appetitive Behavior / drug effects,  physiology*
Behavior, Animal / drug effects
Biomechanics
Dopamine / physiology*
Dopamine Antagonists / pharmacology
Dopamine Uptake Inhibitors / pharmacology
Female
Haloperidol / pharmacology
Movement / drug effects,  physiology
Rats
Rats, Long-Evans
Time Perception / drug effects,  physiology*
Chemical
Reg. No./Substance:
0/Dopamine Antagonists; 0/Dopamine Uptake Inhibitors; 300-62-9/Amphetamine; 52-86-8/Haloperidol

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


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