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Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior

During primate arboreal locomotion, substrate orientation modifies body axis orientation and biomechanical contribution of fore- and hindlimbs. To characterize the role of cortical oscillations in integrating these locomotor demands, we recorded electrocorticographic activity from left dorsal premot...

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Autores principales: Tia, Banty, Takemi, Mitsuaki, Kosugi, Akito, Castagnola, Elisa, Ricci, Davide, Ushiba, Junichi, Fadiga, Luciano, Iriki, Atsushi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7786367/
https://www.ncbi.nlm.nih.gov/pubmed/33068002
http://dx.doi.org/10.1093/cercor/bhaa275
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author Tia, Banty
Takemi, Mitsuaki
Kosugi, Akito
Castagnola, Elisa
Ricci, Davide
Ushiba, Junichi
Fadiga, Luciano
Iriki, Atsushi
author_facet Tia, Banty
Takemi, Mitsuaki
Kosugi, Akito
Castagnola, Elisa
Ricci, Davide
Ushiba, Junichi
Fadiga, Luciano
Iriki, Atsushi
author_sort Tia, Banty
collection PubMed
description During primate arboreal locomotion, substrate orientation modifies body axis orientation and biomechanical contribution of fore- and hindlimbs. To characterize the role of cortical oscillations in integrating these locomotor demands, we recorded electrocorticographic activity from left dorsal premotor, primary motor, and supplementary motor cortices of three common marmosets moving across a branch-like small-diameter pole, fixed horizontally or vertically. Animals displayed behavioral adjustments to the task, namely, the horizontal condition mainly induced quadrupedal walk with pronated/neutral forelimb postures, whereas the vertical condition induced walk and bound gaits with supinated/neutral postures. Examination of cortical activity suggests that β (16–35 Hz) and γ (75–100 Hz) oscillations could reflect different processes in locomotor adjustments. During task, modulation of γ ERS by substrate orientation (horizontal/vertical) and epoch (preparation/execution) suggests close tuning to movement dynamics and biomechanical demands. β ERD was essentially modulated by gait (walk/bound), which could illustrate contribution to movement sequence and coordination. At rest, modulation of β power by substrate orientation underlines its role in sensorimotor processes for postural maintenance.
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spelling pubmed-77863672021-01-12 Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior Tia, Banty Takemi, Mitsuaki Kosugi, Akito Castagnola, Elisa Ricci, Davide Ushiba, Junichi Fadiga, Luciano Iriki, Atsushi Cereb Cortex Original Article During primate arboreal locomotion, substrate orientation modifies body axis orientation and biomechanical contribution of fore- and hindlimbs. To characterize the role of cortical oscillations in integrating these locomotor demands, we recorded electrocorticographic activity from left dorsal premotor, primary motor, and supplementary motor cortices of three common marmosets moving across a branch-like small-diameter pole, fixed horizontally or vertically. Animals displayed behavioral adjustments to the task, namely, the horizontal condition mainly induced quadrupedal walk with pronated/neutral forelimb postures, whereas the vertical condition induced walk and bound gaits with supinated/neutral postures. Examination of cortical activity suggests that β (16–35 Hz) and γ (75–100 Hz) oscillations could reflect different processes in locomotor adjustments. During task, modulation of γ ERS by substrate orientation (horizontal/vertical) and epoch (preparation/execution) suggests close tuning to movement dynamics and biomechanical demands. β ERD was essentially modulated by gait (walk/bound), which could illustrate contribution to movement sequence and coordination. At rest, modulation of β power by substrate orientation underlines its role in sensorimotor processes for postural maintenance. Oxford University Press 2020-10-17 /pmc/articles/PMC7786367/ /pubmed/33068002 http://dx.doi.org/10.1093/cercor/bhaa275 Text en © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Original Article
Tia, Banty
Takemi, Mitsuaki
Kosugi, Akito
Castagnola, Elisa
Ricci, Davide
Ushiba, Junichi
Fadiga, Luciano
Iriki, Atsushi
Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title_full Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title_fullStr Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title_full_unstemmed Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title_short Spectral Power in Marmoset Frontal Motor Cortex during Natural Locomotor Behavior
title_sort spectral power in marmoset frontal motor cortex during natural locomotor behavior
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7786367/
https://www.ncbi.nlm.nih.gov/pubmed/33068002
http://dx.doi.org/10.1093/cercor/bhaa275
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