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    
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.
Douglas G Wallace; Patricia S Wallace; Evelyn Field; Ian Q Whishaw
Related Documents :
15526193 - Evidence for entorhinal and parietal cortices involvement in path integration in the rat.
16890923 - Pharmacological manipulations of food protection behavior in rats: evidence for dopamin...
8568643 - Studies on bacteriocinogenic lactobacillus isolates from selected nigerian fermented fo...
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    
Psychology Department, Northern Illinois University, De Kalb, IL 60115-2892, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Agonistic Behavior / drug effects,  physiology*
Amphetamine / pharmacology
Analysis of Variance
Appetitive Behavior / drug effects,  physiology*
Behavior, Animal / drug effects
Dopamine / physiology*
Dopamine Antagonists / pharmacology
Dopamine Uptake Inhibitors / pharmacology
Haloperidol / pharmacology
Movement / drug effects,  physiology
Rats, Long-Evans
Time Perception / drug effects,  physiology*
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

Previous Document:  Caspase-dependent cell death involved in brain damage after acute subdural hematoma in rats.
Next Document:  Modulation of MOG 37-50-specific CD8+ T cell activation and expansion by CD43.