Cited by 710Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesMemory and Neural Mechanisms

Associative learning mediates dynamic shifts in dopamine signaling in the nucleus accumbens

Day, Jeremy J, Roitman, Mitchell F, Wightman, R Mark, Carelli, Regina M·2007·Nature Neuroscience

Abstract

The ability to predict favorable outcomes using environmental cues is an essential part of learned behavior. Dopamine neurons in the midbrain encode such stimulus-reward relationships in a manner consistent with contemporary learning models, but it is unclear how encoding this translates into actual dopamine release in target regions. Here, we sampled dopamine levels in the rat nucleus accumbens on a rapid (100 ms) timescale using electrochemical technology during a classical conditioning procedure. Early in conditioning, transient dopamine-release events signaled a primary reward, but not predictive cues. After repeated cue-reward pairings, dopamine signals shifted in time to predictive cue onset and were no longer observed at reward delivery. In the absence of stimulus-reward conditioning, there was no shift in the dopamine signal. Consistent with proposed roles in reward prediction and incentive salience, these results indicate that rapid dopamine release provides a reward signal that is dynamically modified by associative learning.

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Crossref · 10.1038/nn1923

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53 of 53 references verified0 citation errors · 0 not checkable

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  • In animal models, dopamine neurons in the midbrain exhibit burst firing in response to both primary reinforcers and conditioned stimuli once conditioning has been established.

    “In animal models, dopamine neurons in the midbrain exhibit burst firing in response to both primary reinforcers and conditioned stimuli once the conditioning has been established (for example, see refs.65,66).”
  • The ventral striatum is implicated in Pavlovian learning.

    “Considerable evidence has amassed to implicate the ventral striatum (VS) in Pavlovian learning”
  • Phasic neurotransmission in the mesolimbic dopamine system is initially triggered by the receipt of reward (US), but shifts to a cue predictive of reward (CS) after associative learning.

    “Phasic neurotransmission in the mesolimbic dopamine system is initially triggered by the receipt of reward (unconditional stimulus; US), but shifts to a cue predictive of reward (conditional stimulus; CS) after associative learning3,4.”

    From A selective role for dopamine in stimulus-reward learning (2011) · cites this paper as [3]

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Authors
Day, J. J., Roitman, M. F., Wightman, R. M., & Carelli, R. M.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Carelli, Regina M
Venue
Nature Neuroscience
Published
2007-07-01
Volume
10
Issue
8
Pages
1020-1028
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2163773342
Cited by
710
References
53
Citations by year
2026: 25 · 2025: 37 · 2024: 38 · 2023: 30 · 2022: 32 · 2021: 37 · 2020: 39 · 2019: 47 · 2018: 44 · 2017: 30 · 2016: 40 · 2015: 57 · 2014: 35 · 2013: 41 · 2012: 42
FWCI
13.63
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Drug Abuse (DA10900, DA 021979, K01DA018298, DA 017318, DA018298, F31DA021979, R01DA017318, R01DA010900)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
dopamine release, nucleus accumbens, associative learning, classical conditioning, reward prediction, incentive salience
MeSH terms
Animals, Association Learning, Behavior, Animal, Conditioning, Classical, Dopamine, Electrochemistry, Male, Nucleus Accumbens, Probability, Reward, Rats, Sprague-Dawley, Rats

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