Cited by 37Neural and Behavioral Psychology StudiesDecision-Making and Behavioral EconomicsNeurotransmitter Receptor Influence on Behavior

Valuation of uncertain and delayed rewards in primate prefrontal cortex

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Kim, Soyoun, Hwang, Jaewon, Seo, Hyojung, Lee, Daeyeol·2009·Neural Networks

Abstract

Humans and animals often must choose between rewards that differ in their qualities, magnitudes, immediacy, and likelihood, and must estimate these multiple reward parameters from their experience. However, the neural basis for such complex decision making is not well understood. To understand the role of the primate prefrontal cortex in determining the subjective value of delayed or uncertain reward, we examined the activity of individual prefrontal neurons during an inter-temporal choice task and a computer-simulated competitive game. Consistent with the findings from previous studies in humans and other animals, the monkey's behaviors during inter-temporal choice were well accounted for by a hyperbolic discount function. In addition, the activity of many neurons in the lateral prefrontal cortex reflected the signals related to the magnitude and delay of the reward expected from a particular action, and often encoded the difference in temporally discounted values that predicted the animal's choice. During a computerized matching pennies game, the animals approximated the optimal strategy, known as Nash equilibrium, using a reinforcement learning algorithm. We also found that many neurons in the lateral prefrontal cortex conveyed the signals related to the animal's previous choices and their outcomes, suggesting that this cortical area might play an important role in forming associations between actions and their outcomes. These results show that the primate lateral prefrontal cortex plays a central role in estimating the values of alternative actions based on multiple sources of information.

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Crossref · 10.1016/j.neunet.2009.03.010

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  • A few studies have estimated the time constant of the reward filter from behavior, and assessed how past rewards affect choice selection.

    “So far a few studies have estimated the time constant of this filter from behavior, and assessed how past rewards affect choice selection8-12”

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Authors
Kim, S., Hwang, J., Seo, H., & Lee, D.
Affiliations
  • Yale University (US)
  • University of Rochester (US)
Corresponding author
Lee, Daeyeol
Venue
Neural Networks
Publisher
Elsevier BV
Published
2009-04
Volume
22
Issue
3
Pages
294-304
ISSN
0893-6080 (ISSN-L)
OpenAlex
W2011389044
Cited by
37
References
82
Citations by year
2024: 2 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1 · 2017: 3 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 5
FWCI
2.74
Type
journal article
Language
en
Open access
Locations
  • Neural Networks (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH073246, R01MH073246)
  • National Institute on Drug Abuse (RL1DA024855, DA024855)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Decision Sciences › General Decision Sciences › Decision-Making and Behavioral Economics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
intertemporal choice, delayed rewards, subjective value, prefrontal cortex, lateral prefrontal cortex, hyperbolic discounting, reward magnitude, reward delay, Nash equilibrium, reinforcement learning, action-outcome associations, decision-making, single-unit activity, rhesus monkeys
MeSH terms
Algorithms, Animals, Haplorhini, Association Learning, Decision Making, Game Theory, Learning, Nerve Net, Neurons, Reinforcement, Psychology, Prefrontal Cortex

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