| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Further evidence for excitability changes in human primary motor cortex during ipsilateral voluntary contractions |
|
言語 |
en |
| 作成者 |
Liang, Nan
Murakami, Tsuneji
Funase, Kozo
Narita, Tomohiro
Kasai, Tatsuya
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2008 Elsevier Ireland Ltd. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
short intracortical inhibition |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
SICI |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
intracortical facilitation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
ICF |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
motor imagery |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
primary motor cortex |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
motor evoked potential |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
MEP |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
transcranial magnetic stimulation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
TMS |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
780 |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
490 |
| 内容記述 |
|
|
内容記述 |
The present study aimed to further investigate whether the intracortical neural circuits within the primary motor cortex (M1) are modulated during ipsilateral voluntary finger movements. Single- and paired-pulse (interstimulus intervals, ISIs; 3 ms and 12 ms) transcranial magnetic stimulations of the left M1 were applied to elicit motor evoked potential (MEP) in the right first dorsal interosseous (Rt-FDI) muscle during voluntary contractions (10% and 30% maximum voluntary contraction) of the left FDI (Lt-FDI) muscle. F-waves of Rt-FDI muscle were recorded under these left index-finger conditions for ensuring that the excitability changes occur at the supraspinal level. MEPs were also recorded during motor imagery of the left index-finger abduction instead of overt movement. The results showed that, in single-pulse transcranial magnetic stimulation (TMS) paradigm, MEPs in Rt-FDI muscle were markedly enhanced during voluntary contractions of Lt-FDI muscle compared with the complete resting state. In paired-pulse TMS paradigm, the short intracortical inhibition was significantly reduced in proportion to increments of the ipsilateral muscle contraction, whereas the intracortical facilitation had no change. F-wave of Rt-FDI muscle was unchanged under these conditions, while MEP in Rt-FDI muscle was also enhanced during motor imagery of the left index-finger abduction. Based on the present results, it is suggested that the intracortical inhibitory neural circuits may be modulated in the transition from rest to activity of the ipsilateral homonymous muscle. The excitability changes in M1 might be induced by overflows of voluntary drive given to the ipsilateral limb, probably via the transcallosal pathway. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier Ireland Ltd |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.neulet.2007.12.058 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1016/j.neulet.2007.12.058 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0304-3940 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00754925 |
| 開始ページ |
|
|
開始ページ |
135 |
| 書誌情報 |
Neuroscience Letters
Neuroscience Letters
巻 433,
号 2,
p. 135-140,
発行日 2008-03
|
| 旧ID |
23374 |
NeurosciLett_433_135.pdf (96.1 KB)
