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Lateralized modulation of beta-band power in sensorimotor areas during action observation

The cortical network for action observation includes areas of the visual cortex and non-visual areas, including areas of the motoric system. Parts of this network are known for their contralateral organization during motion execution, i.e., they predominantly control and respond to movements of the...

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Autores principales: Lange, Joachim, Pavlidou, Anastasia, Schnitzler, Alfons
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479727/
https://www.ncbi.nlm.nih.gov/pubmed/26161072
http://dx.doi.org/10.3389/fnint.2015.00043
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author Lange, Joachim
Pavlidou, Anastasia
Schnitzler, Alfons
author_facet Lange, Joachim
Pavlidou, Anastasia
Schnitzler, Alfons
author_sort Lange, Joachim
collection PubMed
description The cortical network for action observation includes areas of the visual cortex and non-visual areas, including areas of the motoric system. Parts of this network are known for their contralateral organization during motion execution, i.e., they predominantly control and respond to movements of the contralateral body side. We were interested whether this lateralized organization was also present during action observation. Human participants viewed point-light displays of human actors, where the actor was facing and moving either to the right or to the left, while participants' neuromagnetic activity was recorded using magnetoencephalography (MEG). We found that right and left facing movements elicited different activity in left and right motoric areas. This lateralization effect was found in two distinct spatio-temporal-spectral clusters: An early lateralization effect in medial sensors at 12–16 Hz and ~276–675 ms after stimulus onset, and a second cluster in more lateral sensors at 22–28 Hz and ~1275–1775 ms. Our results demonstrate that in addition to the known somatotopic organization of parts of the human motoric system, these areas also show a lateralization effect during action observation. Thus, our results indicate that the hemispheric organization of one's own body map known for motion execution extends to the visual observation of others' bodily actions and movements.
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spelling pubmed-44797272015-07-09 Lateralized modulation of beta-band power in sensorimotor areas during action observation Lange, Joachim Pavlidou, Anastasia Schnitzler, Alfons Front Integr Neurosci Neuroscience The cortical network for action observation includes areas of the visual cortex and non-visual areas, including areas of the motoric system. Parts of this network are known for their contralateral organization during motion execution, i.e., they predominantly control and respond to movements of the contralateral body side. We were interested whether this lateralized organization was also present during action observation. Human participants viewed point-light displays of human actors, where the actor was facing and moving either to the right or to the left, while participants' neuromagnetic activity was recorded using magnetoencephalography (MEG). We found that right and left facing movements elicited different activity in left and right motoric areas. This lateralization effect was found in two distinct spatio-temporal-spectral clusters: An early lateralization effect in medial sensors at 12–16 Hz and ~276–675 ms after stimulus onset, and a second cluster in more lateral sensors at 22–28 Hz and ~1275–1775 ms. Our results demonstrate that in addition to the known somatotopic organization of parts of the human motoric system, these areas also show a lateralization effect during action observation. Thus, our results indicate that the hemispheric organization of one's own body map known for motion execution extends to the visual observation of others' bodily actions and movements. Frontiers Media S.A. 2015-06-25 /pmc/articles/PMC4479727/ /pubmed/26161072 http://dx.doi.org/10.3389/fnint.2015.00043 Text en Copyright © 2015 Lange, Pavlidou and Schnitzler. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neuroscience
Lange, Joachim
Pavlidou, Anastasia
Schnitzler, Alfons
Lateralized modulation of beta-band power in sensorimotor areas during action observation
title Lateralized modulation of beta-band power in sensorimotor areas during action observation
title_full Lateralized modulation of beta-band power in sensorimotor areas during action observation
title_fullStr Lateralized modulation of beta-band power in sensorimotor areas during action observation
title_full_unstemmed Lateralized modulation of beta-band power in sensorimotor areas during action observation
title_short Lateralized modulation of beta-band power in sensorimotor areas during action observation
title_sort lateralized modulation of beta-band power in sensorimotor areas during action observation
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479727/
https://www.ncbi.nlm.nih.gov/pubmed/26161072
http://dx.doi.org/10.3389/fnint.2015.00043
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