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Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants

Sensorimotor conflict induces both sensory and motor disturbances, but the specific factors playing a role in conflict-induced disturbances are still misunderstood. For example, we still do not know the role played by motor intention (vs. a purely visuo-proprioceptive conflict) or the influence of s...

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Autores principales: Brun, Clémentine, Gagné, Martin, McCabe, Candida S., Mercier, Catherine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114925/
https://www.ncbi.nlm.nih.gov/pubmed/30157264
http://dx.doi.org/10.1371/journal.pone.0203206
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author Brun, Clémentine
Gagné, Martin
McCabe, Candida S.
Mercier, Catherine
author_facet Brun, Clémentine
Gagné, Martin
McCabe, Candida S.
Mercier, Catherine
author_sort Brun, Clémentine
collection PubMed
description Sensorimotor conflict induces both sensory and motor disturbances, but the specific factors playing a role in conflict-induced disturbances are still misunderstood. For example, we still do not know the role played by motor intention (vs. a purely visuo-proprioceptive conflict) or the influence of specific types of incongruent visual feedback. The objective of this study was threefold: 1- to compare the effect of passive and active movement during sensorimotor conflict on sensory disturbances measured with a questionnaire; 2- to compare the effect of three incongruent visual feedback conditions on sensory and motor (mediolateral drift and movement amplitude) disturbances; 3- to test whether conflict-induced sensory and motor disturbances were stable over time. 20 healthy participants realized active or passive cyclic upper limb movements while viewing either congruent or incongruent visual feedback about their movement using a robotized exoskeleton combined with 2D virtual reality interface. First, results showed that in condition of conflict, participants reported higher sensory disturbances during active movements compared to passive movements (p = 0.034), suggesting that the efference copy reinforces the conflict between vision and proprioception. Second, the three conditions of incongruence in the active condition induced similar sensory (all p>0.45) and motor disturbances (medio-lateral drift: all p>0.59 and amplitude: all p>0.25), suggesting that conflict induced motor disturbances could be related more to the observation of another movement rather than to a detection of conflict between motor intention and sensory feedback. Finally, both sensory and motor disturbances were stable over time (all ICCs between 0.76 and 0.87), demonstrating low variability within participants. Overall, our results suggest that the efference copy is more involved in sensory disturbances than in motor disturbances, suggesting that they might rely on independent processes.
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spelling pubmed-61149252018-09-17 Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants Brun, Clémentine Gagné, Martin McCabe, Candida S. Mercier, Catherine PLoS One Research Article Sensorimotor conflict induces both sensory and motor disturbances, but the specific factors playing a role in conflict-induced disturbances are still misunderstood. For example, we still do not know the role played by motor intention (vs. a purely visuo-proprioceptive conflict) or the influence of specific types of incongruent visual feedback. The objective of this study was threefold: 1- to compare the effect of passive and active movement during sensorimotor conflict on sensory disturbances measured with a questionnaire; 2- to compare the effect of three incongruent visual feedback conditions on sensory and motor (mediolateral drift and movement amplitude) disturbances; 3- to test whether conflict-induced sensory and motor disturbances were stable over time. 20 healthy participants realized active or passive cyclic upper limb movements while viewing either congruent or incongruent visual feedback about their movement using a robotized exoskeleton combined with 2D virtual reality interface. First, results showed that in condition of conflict, participants reported higher sensory disturbances during active movements compared to passive movements (p = 0.034), suggesting that the efference copy reinforces the conflict between vision and proprioception. Second, the three conditions of incongruence in the active condition induced similar sensory (all p>0.45) and motor disturbances (medio-lateral drift: all p>0.59 and amplitude: all p>0.25), suggesting that conflict induced motor disturbances could be related more to the observation of another movement rather than to a detection of conflict between motor intention and sensory feedback. Finally, both sensory and motor disturbances were stable over time (all ICCs between 0.76 and 0.87), demonstrating low variability within participants. Overall, our results suggest that the efference copy is more involved in sensory disturbances than in motor disturbances, suggesting that they might rely on independent processes. Public Library of Science 2018-08-29 /pmc/articles/PMC6114925/ /pubmed/30157264 http://dx.doi.org/10.1371/journal.pone.0203206 Text en © 2018 Brun 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
Brun, Clémentine
Gagné, Martin
McCabe, Candida S.
Mercier, Catherine
Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title_full Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title_fullStr Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title_full_unstemmed Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title_short Motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
title_sort motor and sensory disturbances induced by sensorimotor conflicts during passive and active movements in healthy participants
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6114925/
https://www.ncbi.nlm.nih.gov/pubmed/30157264
http://dx.doi.org/10.1371/journal.pone.0203206
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