Nature Communications (Oct 2020)

Differential reinforcement encoding along the hippocampal long axis helps resolve the explore–exploit dilemma

  • Alexandre Y. Dombrovski,
  • Beatriz Luna,
  • Michael N. Hallquist

DOI
https://doi.org/10.1038/s41467-020-18864-0
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 15

Abstract

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Decisions under uncertainty involve a balance between exploiting familiar valuable options and exploring unfamiliar ones. Here, the authors study hippocampal responses using fMRI during a reinforcement learning task, and show the differential involvement of the anterior-posterior regions in the explore-exploit aspects of the task.