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Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution

INTRODUCTION: Observing someone else perform a movement facilitates motor planning, execution, and motor memory formation. Rate, an important feature in the execution of repeated movements, has been shown to vary following movement observation although the underlying neural mechanisms are unclear. I...

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Autores principales: Aridan, Nadav, Mukamel, Roy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5102645/
https://www.ncbi.nlm.nih.gov/pubmed/27843700
http://dx.doi.org/10.1002/brb3.550
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author Aridan, Nadav
Mukamel, Roy
author_facet Aridan, Nadav
Mukamel, Roy
author_sort Aridan, Nadav
collection PubMed
description INTRODUCTION: Observing someone else perform a movement facilitates motor planning, execution, and motor memory formation. Rate, an important feature in the execution of repeated movements, has been shown to vary following movement observation although the underlying neural mechanisms are unclear. In the current study, we examined how the rate of self‐paced index finger pressing is implicitly modified following passive observation of a similar action performed at a different rate. METHODS: Fifty subjects performed a finger pressing sequence with their right hand at their own pace before and after passive observation of either a 1‐min video depicting the task performed at 3 Hz by someone else or a black screen. An additional set of 15 subjects performed the task in an MRI scanner. RESULTS: Across all 50 subjects, the spontaneous execution rate prior to video observation had a bimodal distribution with modes around 2 and 4 Hz. Following video observation, the slower subjects performed the task at an increased rate. In the 15 subjects who performed the task in the MRI scanner, we found positive correlation between fMRI signal in the left primary motor strip during passive video observation and subsequent behavioral changes in task performance rate. CONCLUSION: We conclude that observing someone else perform an action at a higher rate implicitly increases the spontaneous rate of execution, and that this implicit induction is mediated by activity in the contralateral primary motor cortex.
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spelling pubmed-51026452016-11-14 Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution Aridan, Nadav Mukamel, Roy Brain Behav Original Research INTRODUCTION: Observing someone else perform a movement facilitates motor planning, execution, and motor memory formation. Rate, an important feature in the execution of repeated movements, has been shown to vary following movement observation although the underlying neural mechanisms are unclear. In the current study, we examined how the rate of self‐paced index finger pressing is implicitly modified following passive observation of a similar action performed at a different rate. METHODS: Fifty subjects performed a finger pressing sequence with their right hand at their own pace before and after passive observation of either a 1‐min video depicting the task performed at 3 Hz by someone else or a black screen. An additional set of 15 subjects performed the task in an MRI scanner. RESULTS: Across all 50 subjects, the spontaneous execution rate prior to video observation had a bimodal distribution with modes around 2 and 4 Hz. Following video observation, the slower subjects performed the task at an increased rate. In the 15 subjects who performed the task in the MRI scanner, we found positive correlation between fMRI signal in the left primary motor strip during passive video observation and subsequent behavioral changes in task performance rate. CONCLUSION: We conclude that observing someone else perform an action at a higher rate implicitly increases the spontaneous rate of execution, and that this implicit induction is mediated by activity in the contralateral primary motor cortex. John Wiley and Sons Inc. 2016-09-15 /pmc/articles/PMC5102645/ /pubmed/27843700 http://dx.doi.org/10.1002/brb3.550 Text en © 2016 The Authors. Brain and Behavior published by Wiley Periodicals, Inc. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Aridan, Nadav
Mukamel, Roy
Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title_full Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title_fullStr Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title_full_unstemmed Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title_short Activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
title_sort activity in primary motor cortex during action observation covaries with subsequent behavioral changes in execution
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5102645/
https://www.ncbi.nlm.nih.gov/pubmed/27843700
http://dx.doi.org/10.1002/brb3.550
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