Cited by 78Neurotransmitter Receptor Influence on BehaviorMemory and Neural MechanismsNeural and Behavioral Psychology Studies

Dopamine signaling in the nucleus accumbens core mediates latent inhibition

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Kutlu, Munir Gunes, Zachry, Jennifer E., Melugin, Patrick R., Tat, Jennifer, Cajigas, Stephanie, Isiktas, Atagun U., Patel, Dev D., Siciliano, Cody A. +3 more·2022·Nature Neuroscience

Abstract

Studies investigating the neural mechanisms by which associations between cues and predicted outcomes control behavior often use associative learning frameworks to understand the neural control of behavior. These frameworks do not always account for the full range of effects that novelty can have on behavior and future associative learning. Here, in mice, we show that dopamine in the nucleus accumbens core is evoked by novel, neutral stimuli, and the trajectory of this response over time tracked habituation to these stimuli. Habituation to novel cues before associative learning reduced future associative learning, a phenomenon known as latent inhibition. Crucially, trial-by-trial dopamine response patterns tracked this phenomenon. Optogenetic manipulation of dopamine responses to the cue during the habituation period bidirectionally influenced future associative learning. Thus, dopamine signaling in the nucleus accumbens core has a causal role in novelty-based learning in a way that cannot be predicted based on purely associative factors.

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Crossref · 10.1038/s41593-022-01126-1

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  • Dopamine release in the medial NAc core in response to unconditioned auditory cues has been shown to facilitate latent inhibition.

    “Additionally, dopamine release in the medial NAc core in response to unconditioned auditory cues has been shown to facilitate latent inhibition, in which habituation to repeated presentation of a neutral sensory stimulus reduces its ability to drive cue-outcome learning (Kutlu et al., 2022).”

    From Ventral striatum dopamine release encodes unique properties of visual stimuli in mice (2023) · cites this paper as Kutlu et al., 2022

    The Results section (‘Dopamine effects cannot be explained by associative factors’; page unavailable) reports the opposite direction: stimulating NAc core dopamine during neutral-cue pre-exposure disrupted latent inhibition, while inhibiting dopamine strengthened it. The paper supports a role for dopamine in latent inhibition, but not the claim that its release facilitates the effect. (LLM, conf=0.89)

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  • Previous literature suggests that dopaminergic neuron firing and dopamine release in the medial NAc core in response to novel sensory events habituates as the stimulus becomes familiar.

    “Previous literature suggests that dopaminergic neuron firing (Schultz, 1998) and dopamine release in the medial NAc core (Kutlu et al., 2022) in response to novel sensory events habituates as the stimulus becomes familiar.”

    From Ventral striatum dopamine release encodes unique properties of visual stimuli in mice (2023) · cites this paper as Kutlu et al., 2022

    The Results section reports that novel neutral stimuli evoked dopamine responses in the NAc core and that those responses diminished with repeated exposure. The cited paper supports the dopamine-release portion of the sentence, not the separately cited neuron-firing portion. Our copy identifies the recording site as the NAc core but does not establish the more specific “medial NAc core” location. (LLM, conf=0.83)

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Research works printed but not linked: 3

  1. [9]Rescorla R & Wagner A A theory of Pavlovian conditioning: Variations in the effectiveness of reinforcement and nonreinforcement. in Classical Conditioning II: Current Research and Theory vol. Vol. 2 (1972).
  2. [36]Sokolov EN Neuronal models and the orienting reflex. The central nervous system and behavior, 3rd Conference 187– 276 (1960).
  3. [45]Schultz W, Dayan P & Montague PR A neural substrate of prediction and reward. Science 275, 1593– 1599 (1997). 9054347

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Authors
Kutlu, M. G., Zachry, J. E., Melugin, P. R., Tat, J., Cajigas, S., Isiktas, A. U., Patel, D. D., Siciliano, C. A., Schoenbaum, G., Sharpe, M. J., & Calipari, E. S.
Affiliations
  • Vanderbilt University (US)
  • National Institute on Drug Abuse (US)
  • University of California, Los Angeles (US)
Corresponding author
Calipari, Erin S.
Venue
Nature Neuroscience
Published
2022-07-28
Volume
25
Issue
8
Pages
1071-1081
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W4288430371
Cited by
78
References
57
Citations by year
2026: 20 · 2025: 17 · 2024: 22 · 2023: 15 · 2022: 4
FWCI
6.41
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Health & Human Services | NIH | National Institute on Drug Abuse
  • Brain and Behavior Research Foundation
  • Whitehall Foundation
  • Edward Mallinckrodt, Jr. Foundation
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 signaling, nucleus accumbens core, latent inhibition, associative learning, habituation, stimulus familiarity, novel stimuli, optogenetic manipulation, cue-outcome associations, mice
MeSH terms
Animals, Conditioning, Classical, Cues, Dopamine, Memory, Nucleus Accumbens, Mice

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