Transcranial static magnetic stimulation over the motor cortex can facilitate the contralateral cortical excitability in human

Takamatsu, Yasuyuki; Koganemaru, Satoko; Watanabe, Tatsunori; Shibata, Sumiya; Yukawa, Yoshihiro; Minakuchi, Masatoshi; Shimomura, Ryota; Mima, Tatsuya

Transcranial static magnetic stimulation over the motor cortex can facilitate the contralateral cortical excitability in human

Takamatsu, Yasuyuki; Koganemaru, Satoko; Watanabe, Tatsunori et al.

Scientific reports, 2021, 11(1), 5370

Permalink : https://hdl.handle.net/2115/81144

このアイテムのアクセス数:454件（2026-08-09 01:56 集計）

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https://doi.org/10.1038/s41598-021-84823-4			13

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アクセス権	open access
URI	https://hdl.handle.net/2115/81144
タイトル	Transcranial static magnetic stimulation over the motor cortex can facilitate the contralateral cortical excitability in human
著者	Takamatsu, Yasuyuki ; Koganemaru, Satoko ; Watanabe, Tatsunori ; Shibata, Sumiya ; Yukawa, Yoshihiro ; Minakuchi, Masatoshi ; Shimomura, Ryota ; Mima, Tatsuya
e-Rad_Researcher 40802096 著者名 Takamatsu, Yasuyuki
著者名 Koganemaru, Satoko
著者名 Watanabe, Tatsunori
著者名 Shibata, Sumiya
著者名 Yukawa, Yoshihiro
著者名 Minakuchi, Masatoshi
著者名 Shimomura, Ryota
著者名 Mima, Tatsuya
言語	英語
発行日	2021-03-08
出版者	Nature Research
収録物名	Scientific reports
巻(号)	11(1)
ページ	5370
抄録	Transcranial static magnetic stimulation (tSMS) has been focused as a new non-invasive brain stimulation, which can suppress the human cortical excitability just below the magnet. However, the non-regional effects of tSMS via brain network have been rarely studied so far. We investigated whether tSMS over the left primary motor cortex (M1) can facilitate the right M1 in healthy subjects, based on the hypothesis that the functional suppression of M1 can cause the paradoxical functional facilitation of the contralateral M1 via the reduction of interhemispheric inhibition (IHI) between the bilateral M1. This study was double-blind crossover trial. We measured the corticospinal excitability in both M1 and IHI from the left to right M1 by recording motor evoked potentials from first dorsal interosseous muscles using single-pulse and paired-pulse transcranial magnetic stimulation before and after the tSMS intervention for 30 min. We found that the corticospinal excitability of the left M1 decreased, while that of the right M1 increased after tSMS. Moreover, the evaluation of IHI revealed the reduced inhibition from the left to the right M1. Our findings provide new insights on the mechanistic understanding of neuromodulatory effects of tSMS in human.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	2045-2322
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1038/s41598-021-84823-4