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. 2018 Jul 19;9:1264. doi: 10.3389/fpsyg.2018.01264

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Copyright © 2018 Connolly.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

According to Friston et al. (2017a), the nervous system calculates the expected free energy of actions under different policies of action, and those with the lowest expected free energy gain dominance (after Connolly, 2017, with permission from the copyright holder).