Cited by 692Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorDecision-Making and Behavioral Economics

Neural differentiation of expected reward and risk in human subcortical structures

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Preuschoff, Kerstin, Bossaerts, Peter, Quartz, Steven R.·2006·Neuron

Abstract

In decision-making under uncertainty, economic studies emphasize the importance of risk in addition to expected reward. Studies in neuroscience focus on expected reward and learning rather than risk. We combined functional imaging with a simple gambling task to vary expected reward and risk simultaneously and in an uncorrelated manner. Drawing on financial decision theory, we modeled expected reward as mathematical expectation of reward, and risk as reward variance. Activations in dopaminoceptive structures correlated with both mathematical parameters. These activations differentiated spatially and temporally. Temporally, the activation related to expected reward was immediate, while the activation related to risk was delayed. Analyses confirmed that our paradigm minimized confounds from learning, motivation, and salience. These results suggest that the primary task of the dopaminergic system is to convey signals of upcoming stochastic rewards, such as expected reward and risk, beyond its role in learning, motivation, and salience.

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Crossref · 10.1016/j.neuron.2006.06.024

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  • When some amount of uncertainty is expected, learning rates should decrease.

    “When some amount of uncertainty is expected (also referred to as outcome variance or risk), learning rates should decrease.10–14”

    From Serotonin neurons modulate learning rate through uncertainty (2022) · cites this paper as [10]

  • With monetary rewards, ventral striatum activity can signal both anticipated reward magnitude and probability.

    “With monetary rewards, research shows that ventral striatum activity can signal both anticipated reward magnitude and probability 56, 57.”

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Authors
Preuschoff, K., Bossaerts, P., & Quartz, S. R.
Affiliations
California Institute of Technology (US)
Corresponding author
Preuschoff, Kerstin
Venue
Neuron
Publisher
Elsevier BV
Published
2006-08
Volume
51
Issue
3
Pages
381-390
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2139635035
Cited by
692
References
55
Citations by year
2026: 14 · 2025: 18 · 2024: 25 · 2023: 30 · 2022: 28 · 2021: 34 · 2020: 27 · 2019: 27 · 2018: 30 · 2017: 27 · 2016: 34 · 2015: 37 · 2014: 37 · 2013: 51 · 2012: 42
FWCI
21.27
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
  • David and Lucile Packard Foundation
  • Gordon and Betty Moore Foundation
  • National Science Foundation (0093757)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
Keywords
expected reward, risk, decision making under uncertainty, gambling task, dopaminergic system, subcortical structures, reward variance, expected value, stochastic rewards
MeSH terms
Adolescent, Adult, Brain, Brain Mapping, Discrimination Learning, Female, Humans, Male, Psychomotor Performance, Reward, Risk-Taking

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