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The neurocomputational architecture of explore-exploit decision making

Hogeveen, J.; Mullins, T. S.; Romero, J.; Eversole, E.; Rogge-Obando, K.; Mayer, A. R.; Costa, V. D.

2021-06-21 neuroscience
10.1101/2021.06.21.449128 bioRxiv
Show abstract

Humans and other animals often make the difficult decision to try new options (exploration) and forego immediate rewards (exploitation). Novelty-seeking is an adaptive solution to this explore-exploit dilemma, but our understanding of the neural computations supporting novelty-seeking in humans is limited. Here, we presented the same explore-exploit decision making task to monkeys and humans and found evidence that the computational basis for novelty-seeking is conserved across primate species. Critically, through computational model-based decomposition of event-related functional magnetic resonance imaging (fMRI) in humans, these findings reveal a previously unidentified cortico-subcortical architecture mediating explore-exploit behavior in humans.

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