Task complexity interacts with state-space uncertainty in the arbitration between model-based and model-free learning

The brain dynamically arbitrates between two model-based and model-free reinforcement learning (RL). Here, the authors show that participants tended to increase model-based control in response to increasing task complexity, but resorted to model-free when both uncertainty and task complexity were hi...

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Bibliographic Details
Main Authors: Dongjae Kim, Geon Yeong Park, John P. O′Doherty, Sang Wan Lee
Format: Article
Language:English
Published: Nature Publishing Group 2019-12-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-13632-1