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Dissociable neural correlates of uncertainty underlie different exploration strategies

Psychology

Dissociable neural correlates of uncertainty underlie different exploration strategies

M. S. Tomov, V. Q. Truong, et al.

This fMRI study by Momchil S. Tomov and collaborators reveals the intriguing neural mechanisms behind different exploration strategies in decision-making. The research uncovers how the brain's right rostrolateral and dorsolateral prefrontal cortices process uncertainties to guide both directed and random exploration, highlighting a complex interaction that informs our choices.

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Playback language: English
Abstract
This fMRI study (n=31) investigated the neural basis of different exploration strategies in decision-making. Results show that relative uncertainty is represented in right rostrolateral prefrontal cortex (RLPFC) and drives directed exploration, while total uncertainty is represented in right dorsolateral prefrontal cortex (DLPFC) and drives random exploration. Decision value, combining these uncertainties, is reflected in motor cortex activity. Findings support a hybrid computational architecture where separate uncertainty computations are combined to inform choice.
Publisher
Nature Communications
Published On
May 12, 2020
Authors
Momchil S. Tomov, Van Q. Truong, Rohan A. Hundia, Samuel J. Gershman
Tags
fMRI
decision-making
exploration strategies
neural basis
uncertainty
prefrontal cortex
motor cortex

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