他者の身振りを伴う発話観察中の口唇部支配運動野の興奮性変化

日本運動生理学雑誌 Volume 16 Issue 2 Page 33-39 published_at 2009-09-30
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Title ( jpn )
他者の身振りを伴う発話観察中の口唇部支配運動野の興奮性変化
Title ( eng )
Excitability Change of Lip Motor Cortex During Observation of Another Person's Speech with Hand Gesture
Creator
Cui Chunfu
Narita Tomohiro
Source Title
日本運動生理学雑誌
Volume 16
Issue 2
Start Page 33
End Page 39
Abstract
This study was to examine the effect of video clip observation performed by another person who pronounced some words with hand gesture on the excitability of lip motor cortex. Transcranial magnetic stimulation (TMS) was applied to the appropriate spot of motor cortex for orbicularis oris during weak voluntary contraction. We found the significant increase of excitability of lip motor cortex during observation for another person's pronunciation with both-hands gesture compared to those with vocalization only or with one-hand gesture. Mirror neuron system, consisted of Broca area and the primary motor cortex in human brain, would be one of the background neural mechanisms for the present results. Because the emphasized visual inputs during observation of the both-hands gesture possibly made the pronunciation imagery clear. It is suggested that the speech with hand gesture could be an effective method to communicate with other person.
Keywords
TMS
cortical excitability
vocalization
hand gesture
mirror neuron system
NDC
Medical sciences [ 490 ]
Language
jpn
Resource Type journal article
Publisher
日本運動生理学会
Date of Issued 2009-09-30
Rights
日本運動生理学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 1340-3036
[NCID] AA11201699
[NAID] 110007356993 isVersionOf