HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Dental Medicine / Faculty of Dental Medicine >
Peer-reviewed Journal Articles, etc >

Movement-related cortical magnetic fields associated with self-paced tongue protrusion in humans

This item is licensed under: Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International

Files in This Item:
Manuscript.pdf5.51 MBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/68828

Title: Movement-related cortical magnetic fields associated with self-paced tongue protrusion in humans
Other Titles: Readiness fields to human tongue protrusion
Authors: Maezawa, Hitoshi Browse this author →KAKEN DB
Oguma, Hidetoshi Browse this author
Hirai, Yoshiyuki Browse this author →KAKEN DB
Hisadome, Kazunari Browse this author
Shiraishi, Hideaki Browse this author →KAKEN DB
Funahashi, Makoto Browse this author →KAKEN DB
Keywords: magnetoencephalography
readiness fields
motor fields
hypoglossal motor nucleus
voluntary movement
MEG
Issue Date: Apr-2017
Publisher: Elsevier
Journal Title: Neuroscience Research
Volume: 117
Start Page: 22
End Page: 27
Publisher DOI: 10.1016/j.neures.2016.11.010
PMID: 27888072
Abstract: Sophisticated tongue movements are coordinated finely via cortical control. We elucidated the cortical processes associated with voluntary tongue movement. Movement-related cortical fields were investigated during self-paced repetitive tongue protrusion. Surface tongue electromyograms were recorded to determine movement onset. To identify the location of the primary somatosensory cortex (S1), tongue somatosensory evoked fields were measured. The readiness fields (RFs) over both hemispheres began prior to movement onset and culminated in the motor fields (MFs) around movement onset. These signals were followed by transient movement evoked fields (MEFs) after movement onset. The MF and MEF peak latencies and magnitudes were not different between the hemispheres. The MF current sources were located in the precentral gyrus, suggesting they were located in the primary motor cortex (M1); this was contrary to the MEF sources, which were located in S1. We conclude that the RFs and MFs mainly reflect the cortical processes for the preparation and execution of tongue movement in the bilateral M1, without hemispheric dominance. Moreover, the MEFs may represent proprioceptive feedback from the tongue to bilateral S1. Such cortical processing related to the efferent and afferent information may aid in the coordination of sophisticated tongue movements.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/68828
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 前澤 仁志

Export metadata:

OAI-PMH ( junii2 , jpcoar )

MathJax is now OFF:


 

 - Hokkaido University