Cited by 298Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesNeural dynamics and brain function

Correlated Coding of Motivation and Outcome of Decision by Dopamine Neurons

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Satoh, Takemasa, Nakai, Sadamu, Sato, Tatsuo, Kimura, Minoru·2003·The Journal of Neuroscience

Abstract

We recorded the activity of midbrain dopamine neurons in an instrumental conditioning task in which monkeys made a series of behavioral decisions on the basis of distinct reward expectations. Dopamine neurons responded to the first visual cue that appeared in each trial [conditioned stimulus (CS)] through which monkeys initiated trial for decision while expecting trial-specific reward probability and volume. The magnitude of neuronal responses to the CS was approximately proportional to reward expectations but with considerable discrepancy. In contrast, CS responses appear to represent motivational properties, because their magnitude at trials with identical reward expectation had significant negative correlation with reaction times of the animal after the CS. Dopamine neurons also responded to reinforcers that occurred after behavioral decisions, and the responses precisely encoded positive and negative reward expectation errors (REEs). The gain of coding REEs by spike frequency increased during learning act-outcome contingencies through a few months of task training, whereas coding of motivational properties remained consistent during the learning. We found that the magnitude of CS responses was positively correlated with that of reinforcers, suggesting a modulation of the effectiveness of REEs as a teaching signal by motivation. For instance, rate of learning could be faster when animals are motivated, whereas it could be slower when less motivated, even at identical REEs. Therefore, the dual correlated coding of motivation and REEs suggested the involvement of the dopamine system, both in reinforcement in more elaborate ways than currently proposed and in motivational function in reward-based decision-making and learning.

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Crossref · 10.1523/jneurosci.23-30-09913.2003

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  • These slow changes fail to occur with more-controlled arm, mouth and eye movements in a considerable range of studies.

    “these changes fail to occur with more-controlled arm, mouth and eye movements in a considerable range of studies2,5,9,13,151,152,154”
  • Dopamine responses in elaborate tasks constitute standard reward prediction-error signals.

    “However, on closer inspection, dopamine responses in such elaborate tasks constitute standard reward prediction-error signals2,33,59,66,69,75,151–153.”

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  1. Toates F (1986) Motivational systems. Cambridge, UK: Cambridge UP.

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Authors
Satoh, T., Nakai, S., Sato, T., & Kimura, M.
Affiliations
Kyoto Prefectural University of Medicine (JP)
Venue
The Journal of Neuroscience
Published
2003-10-29
Volume
23
Issue
30
Pages
9913-9923
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1515543691
Cited by
298
References
50
Citations by year
2026: 1 · 2025: 4 · 2024: 4 · 2023: 8 · 2022: 6 · 2021: 6 · 2020: 7 · 2019: 7 · 2018: 11 · 2017: 10 · 2016: 13 · 2015: 21 · 2014: 15 · 2013: 13 · 2012: 23
FWCI
5.31
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
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 › Neural dynamics and brain function
Keywords
dopaminergic neurons, midbrain dopamine system, reward-based decision-making, operant conditioning, reaction time, learning rate, teaching signal
MeSH terms
Action Potentials, Animals, Behavior, Animal, Choice Behavior, Conditioning, Operant, Cues, Decision Making, Dopamine, Macaca, Male, Mesencephalon, Motivation, Neurons, Photic Stimulation, Reward

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