Cited by 122Neurotransmitter Receptor Influence on BehaviorMemory and Neural MechanismsNeural and Behavioral Psychology Studies

Extended habit training reduces dopamine mediation of appetitive response expression

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Choi, Won Yung, Balsam, Peter D., Horvitz, Jon C.·2005·The Journal of Neuroscience

Abstract

A wide range of behaviors is impaired after disruption of dopamine (DA) transmission, yet behaviors that are reflexive, automatic, or elicited by salient cues often remain intact. Responses triggered by strong external cues appear to be DA independent. Here, we examined the possibility that a single behavior may become DA independent as a result of extended training. Rats were trained to execute a head-entry response to a cue signaling food delivery. Vulnerability of the response to D1 or D2 receptor blockade was assessed on day 3, 7, or 17 of 28-trial-per-day training. During the early stages of training, the D1 receptor antagonist R(+)-7-chloro-8-hydroxy-3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrochloride (SCH 23390) increased response latencies; however, the same behavior was unaffected by SCH 23390 in animals tested during the later stages of training. Other aspects of behavior such as locomotion and head-entry responses during the uncued intertrial interval remained vulnerable to SCH 23390 throughout the experiment. This D1-mediated response was unaffected by the D2 antagonist raclopride, even at a dose that strongly suppressed locomotion. The results provide strong evidence that a D1-dependent behavior becomes less dependent on DA with extended training. A number of fundamental neurobiological changes occur as behaviors become learned habits; at least for some responses, this change involves a shift from D1-mediated to D1-independent responding.

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Crossref · 10.1523/jneurosci.1498-05.2005

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  • Blockade of D1 receptors strongly disrupts rats' performance of a simple Pavlovian approach response to a sensory cue during early stages of training but has little or no disruptive effect in rats that receive extended training prior to dopamine antagonist challenge.

    “As another example, blockade of D1 receptors strongly disrupts rats' performance of a simple Pavlovian approach response to a sensory cue during early stages of training, but has little or no disruptive effect in rats that receive extended training prior to dopamine antagonist challenge [46–47].”
  • Some data indicate that over-trained responses can be independent of dopamine more generally.

    “and of DA more generally [77]”

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Authors
Choi, W. Y., Balsam, P. D., & Horvitz, J. C.
Affiliations
  • Columbia University (US)
  • Boston College (US)
Corresponding author
Horvitz, Jon C.
Venue
The Journal of Neuroscience
Published
2005-07-20
Volume
25
Issue
29
Pages
6729-6733
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2116441431
Cited by
122
References
30
Citations by year
2026: 1 · 2024: 23 · 2022: 5 · 2021: 2 · 2020: 1 · 2019: 4 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 4 · 2014: 6 · 2013: 5 · 2012: 5
FWCI
3.75
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r29da011653-05)
  • National Institute on Drug Abuse (R29 DA 11653, R21DA015210)
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, habit formation, dopamine D1 receptor, dopamine D2 receptor, SCH 23390, raclopride, locomotion, behavioral learning, rats
MeSH terms
Animals, Appetitive Behavior, Behavior, Animal, Benzazepines, Conditioning, Psychological, Dopamine, Habits, Male, Rats, Sprague-Dawley, Receptors, Dopamine D1, Dopamine Antagonists, Raclopride, Rats

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