Cited by 58Neurotransmitter Receptor Influence on BehaviorMemory and Neural MechanismsNeural and Behavioral Psychology Studies

A selective role for dopamine in the nucleus accumbens of the rat in random foraging but not delayed spatial win-shift-based foraging

Floresco, Stan B., Seamans, Jeremy K., Phillips, Anthony G.·1996·Behavioural Brain Research

Abstract

The role of mesoaccumbens dopamine (DA) in radial-arm maze foraging is assessed by infusing low doses of the DA antagonist haloperidol into the nucleus accumbens (N.Acc.). Infusions of haloperidol (0, 125, 250 or 500 ng/0.5 microliter) into the N.Acc. of well-trained rats dose-dependently increase the number of re-entries to arms (errors) during the random foraging task, in which 4 arms on an 8-arm maze are baited randomly. However, in a separate group of animals, similar infusions produce no impairment when delivered prior to the test phase of the delayed spatial win-shift task, which require the animal to acquire information during a training phase, and to use that information 30 min later, during a test phase. These results suggest that DA neurotransmission in the N.Acc. is crucial for foraging behavior when there is ambiguity about the location of reward in a spatial environment, but is not needed for efficient foraging behavior when an animal has previous information as to the location of rewarding stimuli. The results are discussed with respect to of the underlying physiological interactions between limbic glutamate and mesoaccumbens DA transmission in the N.Acc.

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Crossref · 10.1016/0166-4328(96)00031-9

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Authors
Floresco, S. B., Seamans, J. K., & Phillips, A. G.
Affiliations
University of British Columbia (CA)
Corresponding author
Phillips, Anthony G.
Venue
Behavioural Brain Research
Publisher
Elsevier BV
Published
1996-10
Volume
80
Issue
1-2
Pages
161-168
ISSN
0166-4328 (ISSN-L)
OpenAlex
W1984003649
Cited by
56
References
55
Citations by year
2023: 2 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 2 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
1.35
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioural Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
dopamine, nucleus accumbens, haloperidol, radial maze, foraging behavior
MeSH terms
Animals, Dopamine, Dose-Response Relationship, Drug, Feeding Behavior, Haloperidol, Male, Nucleus Accumbens, Space Perception, Receptors, Dopamine D1, Dopamine Antagonists, Glutamic Acid, Rats, Dopamine D2 Receptor Antagonists

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