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Premotor and Motor Cortices Encode Reward
Rewards associated with actions are critical for motivation and learning about the consequences of one’s actions on the world. The motor cortices are involved in planning and executing movements, but it is unclear whether they encode reward over and above limb kinematics and dynamics. Here, we repor...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5001708/ https://www.ncbi.nlm.nih.gov/pubmed/27564707 http://dx.doi.org/10.1371/journal.pone.0160851 |
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author | Ramkumar, Pavan Dekleva, Brian Cooler, Sam Miller, Lee Kording, Konrad |
author_facet | Ramkumar, Pavan Dekleva, Brian Cooler, Sam Miller, Lee Kording, Konrad |
author_sort | Ramkumar, Pavan |
collection | PubMed |
description | Rewards associated with actions are critical for motivation and learning about the consequences of one’s actions on the world. The motor cortices are involved in planning and executing movements, but it is unclear whether they encode reward over and above limb kinematics and dynamics. Here, we report a categorical reward signal in dorsal premotor (PMd) and primary motor (M1) neurons that corresponds to an increase in firing rates when a trial was not rewarded regardless of whether or not a reward was expected. We show that this signal is unrelated to error magnitude, reward prediction error, or other task confounds such as reward consumption, return reach plan, or kinematic differences across rewarded and unrewarded trials. The availability of reward information in motor cortex is crucial for theories of reward-based learning and motivational influences on actions. |
format | Online Article Text |
id | pubmed-5001708 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-50017082016-09-12 Premotor and Motor Cortices Encode Reward Ramkumar, Pavan Dekleva, Brian Cooler, Sam Miller, Lee Kording, Konrad PLoS One Research Article Rewards associated with actions are critical for motivation and learning about the consequences of one’s actions on the world. The motor cortices are involved in planning and executing movements, but it is unclear whether they encode reward over and above limb kinematics and dynamics. Here, we report a categorical reward signal in dorsal premotor (PMd) and primary motor (M1) neurons that corresponds to an increase in firing rates when a trial was not rewarded regardless of whether or not a reward was expected. We show that this signal is unrelated to error magnitude, reward prediction error, or other task confounds such as reward consumption, return reach plan, or kinematic differences across rewarded and unrewarded trials. The availability of reward information in motor cortex is crucial for theories of reward-based learning and motivational influences on actions. Public Library of Science 2016-08-26 /pmc/articles/PMC5001708/ /pubmed/27564707 http://dx.doi.org/10.1371/journal.pone.0160851 Text en © 2016 Ramkumar et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Ramkumar, Pavan Dekleva, Brian Cooler, Sam Miller, Lee Kording, Konrad Premotor and Motor Cortices Encode Reward |
title | Premotor and Motor Cortices Encode Reward |
title_full | Premotor and Motor Cortices Encode Reward |
title_fullStr | Premotor and Motor Cortices Encode Reward |
title_full_unstemmed | Premotor and Motor Cortices Encode Reward |
title_short | Premotor and Motor Cortices Encode Reward |
title_sort | premotor and motor cortices encode reward |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5001708/ https://www.ncbi.nlm.nih.gov/pubmed/27564707 http://dx.doi.org/10.1371/journal.pone.0160851 |
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