Cited by 2,224Neural and Behavioral Psychology StudiesDecision-Making and Behavioral EconomicsNeurotransmitter Receptor Influence on Behavior

Cortical substrates for exploratory decisions in humans

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Daw, Nathaniel D., O'Doherty, John P., Dayan, Peter, Seymour, Ben, Dolan, Raymond J.·2006·Nature

Abstract

Decision making in an uncertain environment poses a conflict between the opposing demands of gathering and exploiting information. In a classic illustration of this 'exploration-exploitation' dilemma, a gambler choosing between multiple slot machines balances the desire to select what seems, on the basis of accumulated experience, the richest option, against the desire to choose a less familiar option that might turn out more advantageous (and thereby provide information for improving future decisions). Far from representing idle curiosity, such exploration is often critical for organisms to discover how best to harvest resources such as food and water. In appetitive choice, substantial experimental evidence, underpinned by computational reinforcement learning (RL) theory, indicates that a dopaminergic, striatal and medial prefrontal network mediates learning to exploit. In contrast, although exploration has been well studied from both theoretical and ethological perspectives, its neural substrates are much less clear. Here we show, in a gambling task, that human subjects' choices can be characterized by a computationally well-regarded strategy for addressing the explore/exploit dilemma. Furthermore, using this characterization to classify decisions as exploratory or exploitative, we employ functional magnetic resonance imaging to show that the frontopolar cortex and intraparietal sulcus are preferentially active during exploratory decisions. In contrast, regions of striatum and ventromedial prefrontal cortex exhibit activity characteristic of an involvement in value-based exploitative decision making. The results suggest a model of action selection under uncertainty that involves switching between exploratory and exploitative behavioural modes, and provide a computationally precise characterization of the contribution of key decision-related brain systems to each of these functions.

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Authors
Daw, N. D., O'Doherty, J. P., Dayan, P., Seymour, B., & Dolan, R. J.
Affiliations
  • Gatsby Computational Neuroscience Unit (GB)
  • University College London (GB)
Corresponding author
Daw, Nathaniel D.
Venue
Nature
Published
2006-06
Volume
441
Issue
7095
Pages
876-879
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2077611535
Cited by
2,224
References
31
Citations by year
2026: 80 · 2025: 114 · 2024: 127 · 2023: 125 · 2022: 115 · 2021: 136 · 2020: 166 · 2019: 118 · 2018: 143 · 2017: 121 · 2016: 108 · 2015: 103 · 2014: 111 · 2013: 97 · 2012: 107
FWCI
40.78
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Max Planck Digital Library (submittedVersion, other-oa)
  • Cambridge University Engineering Department Publications Database (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
Wellcome Trust (078865)
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
exploration-exploitation balance, curiosity, frontopolar cortex, intraparietal sulcus, striatum, ventromedial prefrontal cortex, gambling task, reinforcement learning, value-based decision making, human decision-making, computational modeling of decision making
MeSH terms
Choice Behavior, Decision Making, Exploratory Behavior, Gambling, Humans, Magnetic Resonance Imaging, Models, Neurological, Models, Psychological, Reward, Prefrontal Cortex, Uncertainty

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