Cited by 143Neural and Behavioral Psychology StudiesNeurotransmitter Receptor Influence on BehaviorDecision-Making and Behavioral Economics

Dynamic Signals Related to Choices and Outcomes in the Dorsolateral Prefrontal Cortex

Seo, H., Barraclough, D. J., Lee, D.·2007·Cerebral Cortex

Abstract

Although economic theories based on utility maximization account for a range of choice behaviors, utilities must be estimated through experience. Dynamics of this learning process may account for certain discrepancies between the predictions of economic theories and real choice behaviors of humans and other animals. To understand the neural mechanisms responsible for such adaptive decision making, we trained rhesus monkeys to play a simulated matching pennies game. Small but systematic deviations of the animal's behavior from the optimal strategy were consistent with the predictions of reinforcement learning theory. In addition, individual neurons in the dorsolateral prefrontal cortex (DLPFC) encoded 3 different types of signals that can potentially influence the animal's future choices. First, activity modulated by the animal's previous choices might provide the eligibility trace that can be used to attribute a particular outcome to its causative action. Second, activity related to the animal's rewards in the previous trials might be used to compute an average reward rate. Finally, activity of some neurons was modulated by the computer's choices in the previous trials and may reflect the process of updating the value functions. These results suggest that the DLPFC might be an important node in the cortical network of decision making.

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Registry

Crossref · 10.1093/cercor/bhm064

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  • Neural activity in all three cortical areas carries the information of past reward events.

    “Neural activity in all three cortical areas carries the information of past reward events19-22.”
  • In the matching pennies task, the animals made their decisions largely on the basis of their reward history.

    “Although the global optimal strategy for the matching pennies task is to choose randomly and therefore does not require memory, the animals made their decisions largely on the basis of their reward history11,19-22.”
  • Although the overall performance of monkeys was nearly optimal, their trial-by-trial decisions, locally in time, were influenced by previous rewards and actions.

    “Although the overall performance of monkeys was nearly optimal, their trial-by-trial decisions, locally in time, were influenced by previous rewards and actions11,19-22.”

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Authors
Seo, H., Barraclough, D. J., & Lee, D.
Affiliations
  • Yale University (US)
  • University of Rochester (US)
Venue
Cerebral Cortex
Published
2007-06-04
Volume
17
Issue
suppl 1
Pages
i110-i117
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2165440754
Cited by
143
References
34
Citations by year
2026: 3 · 2025: 6 · 2024: 1 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 4 · 2019: 9 · 2018: 10 · 2017: 9 · 2016: 8 · 2015: 10 · 2014: 10 · 2013: 5 · 2012: 4
FWCI
6.99
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH073246, R01MH073246)
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
dorsolateral prefrontal cortex, adaptive decision-making, reinforcement learning, eligibility traces, rhesus monkeys, utility maximization, neural basis of decision making
MeSH terms
Animals, Choice Behavior, Electrophysiology, Female, Learning, Macaca mulatta, Male, Models, Neurological, Photic Stimulation, Psychomotor Performance, Reinforcement, Psychology, Reward, Saccades, Prefrontal Cortex

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