Gu, B.-M., Schmidt, R. orcid.org/0000-0002-2474-3744 and Berke, J.D. (2020) Globus pallidus dynamics reveal covert strategies for behavioral inhibition. eLife, 9. e57215. ISSN 2050-084X
Abstract
Flexible behavior requires restraint of actions that are no longer appropriate. This behavioral inhibition critically relies on frontal cortex - basal ganglia circuits. Within the basal ganglia the globus pallidus pars externa (GPe), has been hypothesized to mediate selective proactive inhibition: being prepared to stop a specific action, if needed. Here we investigate population dynamics of rat GPe neurons during preparation-to-stop, stopping, and going. Rats selectively engaged proactive inhibition towards specific actions, as shown by slowed reaction times (RTs). Under proactive inhibition, GPe population activity occupied state-space locations farther from the trajectory followed during normal movement initiation. Furthermore, the state-space locations were predictive of distinct types of errors: failures-to-stop, failures-to-go, and incorrect choices. Slowed RTs on correct proactive trials reflected starting bias towards the alternative action, which was overcome before progressing towards action initiation. Our results demonstrate that rats can exert cognitive control via strategic adjustments to their GPe network state.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) permitting unrestricted use and redistribution provided that the original author and source are credited. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Psychology (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Jun 2020 10:36 |
Last Modified: | 11 Nov 2021 16:59 |
Status: | Published |
Publisher: | eLife Sciences Publications Ltd |
Refereed: | Yes |
Identification Number: | 10.7554/eLife.57215 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:161807 |