Cited by 74Neural and Behavioral Psychology StudiesDecision-Making and Behavioral EconomicsMemory and Neural Mechanisms

Polarity of uncertainty representation during exploration and exploitation in ventromedial prefrontal cortex

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Trudel, Nadescha, Scholl, Jacqueline, Klein-Flügge, Miriam C., Fouragnan, Elsa, Tankelevitch, Lev, Wittmann, Marco K., Rushworth, Matthew F. S.·2020·Nature Human Behaviour

Abstract

Environments furnish multiple information sources for making predictions about future events. Here we use behavioural modelling and functional magnetic resonance imaging to describe how humans select predictors that might be most relevant. First, during early encounters with potential predictors, participants' selections were explorative and directed towards subjectively uncertain predictors (positive uncertainty effect). This was particularly the case when many future opportunities remained to exploit knowledge gained. Then, preferences for accurate predictors increased over time, while uncertain predictors were avoided (negative uncertainty effect). The behavioural transition from positive to negative uncertainty-driven selections was accompanied by changes in the representations of belief uncertainty in ventromedial prefrontal cortex (vmPFC). The polarity of uncertainty representations (positive or negative encoding of uncertainty) changed between exploration and exploitation periods. Moreover, the two periods were separated by a third transitional period in which beliefs about predictors' accuracy predominated. The vmPFC signals a multiplicity of decision variables, the strength and polarity of which vary with behavioural context.

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Authors
Trudel, N., Scholl, J., Klein-Flügge, M. C., Fouragnan, E., Tankelevitch, L., Wittmann, M. K., & Rushworth, M. F. S.
Affiliations
University of Oxford (GB)
Corresponding author
Trudel, Nadescha
Venue
Nature Human Behaviour
Published
2020-08-31
Volume
5
Issue
1
Pages
83-98
ISSN
2397-3374 (ISSN-L)
OpenAlex
W3082827657
Cited by
74
References
48
Citations by year
2026: 10 · 2025: 13 · 2024: 13 · 2023: 16 · 2022: 9 · 2021: 11 · 2020: 2
FWCI
5.11
Type
journal article
Language
en
Open access
Locations
  • Nature Human Behaviour (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • PEARL (University of Plymouth) (submittedVersion, cc-by-nc-nd)
Funders
  • RCUK | Economic and Social Research Council (ES/J500112/1)
  • RCUK | Medical Research Council (MR/NO14448/1)
  • more specifically: MRC Skills Development Fellowship
  • Sir Henry Wellcome Fellowship
  • Wellcome Trust (WT100973AIA)
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 › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
belief uncertainty, ventromedial prefrontal cortex, exploration and exploitation, predictor selection, decision variables, behavioral modeling, belief updating
MeSH terms
Bayes Theorem, Brain, Choice Behavior, Exploratory Behavior, Female, Humans, Judgment, Magnetic Resonance Imaging, Male, Prefrontal Cortex, Uncertainty, Young Adult, Functional Neuroimaging

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