Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.

Both mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coi...

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Autores principales:	Florent Lebon, Martin Lotze, Cathy M Stinear, Winston D Byblow
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d30c666ab5d7447cba769500c6f50032
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id	oai:doaj.org-article:d30c666ab5d7447cba769500c6f50032
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spelling	oai:doaj.org-article:d30c666ab5d7447cba769500c6f500322021-11-18T07:16:42ZTask-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.1932-620310.1371/journal.pone.0037850https://doaj.org/article/d30c666ab5d7447cba769500c6f500322012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22693579/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Both mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coil TMS to investigate interactions between right inferior parietal lobe (rIPL) and left primary motor cortex (M1) in 11 healthy participants. They performed MI (right index-thumb pinching in time with a 1 Hz metronome) or hand MR tasks, while motor evoked potentials (MEPs) were recorded from right first dorsal interosseous. At rest, rIPL conditioning 6 ms prior to M1 stimulation facilitated MEPs in all participants, whereas this facilitation was abolished during MR. While rIPL conditioning 12 ms prior to M1 stimulation had no effect on MEPs at rest, it suppressed corticomotor excitability during MI. These results support the idea that rIPL forms part of a distinct inhibitory network that may prevent unwanted movement during imagery tasks.Florent LebonMartin LotzeCathy M StinearWinston D ByblowPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37850 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
description	Both mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coil TMS to investigate interactions between right inferior parietal lobe (rIPL) and left primary motor cortex (M1) in 11 healthy participants. They performed MI (right index-thumb pinching in time with a 1 Hz metronome) or hand MR tasks, while motor evoked potentials (MEPs) were recorded from right first dorsal interosseous. At rest, rIPL conditioning 6 ms prior to M1 stimulation facilitated MEPs in all participants, whereas this facilitation was abolished during MR. While rIPL conditioning 12 ms prior to M1 stimulation had no effect on MEPs at rest, it suppressed corticomotor excitability during MI. These results support the idea that rIPL forms part of a distinct inhibitory network that may prevent unwanted movement during imagery tasks.
format	article
author	Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow
author_facet	Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow
author_sort	Florent Lebon
title	Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
title_short	Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
title_full	Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
title_fullStr	Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
title_full_unstemmed	Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
title_sort	task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/d30c666ab5d7447cba769500c6f50032
work_keys_str_mv	AT florentlebon taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT martinlotze taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT cathymstinear taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT winstondbyblow taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery
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Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.

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