Shingo Okabe
University of Tokyo
48 Papers
256 Citations
Shingo Okabe is an academic researcher from University of Tokyo. The author has contributed to research in topics: Transcranial magnetic stimulation & Motor cortex. The author has an hindex of 25, co-authored 47 publications.
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Papers
Comparison between short train, monophasic and biphasic repetitive transcranial magnetic stimulation (rTMS) of the human motor cortex
TL;DR: The enhancement of cortical MEPs with no changes of responses to foramen magnum level stimulation suggests that the facilitation occurred at the motor cortex, and it is hypothesized that monophasic rTMS has a stronger short-term effect during repetitive stimulation than biphasic TMS.
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Effects of 1-Hz repetitive transcranial magnetic stimulation on acute pain induced by capsaicin.
Yohei Tamura,Shingo Okabe,Takashi Ohnishi,Daisuke N. Saito,Noritoshi Arai,Soichiro Mochio,Kiyoharu Inoue,Yoshikazu Ugawa +7 more
TL;DR: It is concluded that rTMS over M1 should have beneficial effects on acute pain, and its effects must be caused by functional changes of MPFC and caudal ACC.
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Further evidence to support different mechanisms underlying intracortical inhibition of the motor cortex.
Ritsuko Hanajima,Toshiaki Furubayashi,Nobue K. Iwata,Yasushi Shiio,Shingo Okabe,Ichiro Kanazawa,Yoshikazu Ugawa +6 more
TL;DR: The results support the idea that the mechanism responsible for the inhibition at an ISI of 1 ms is not the same as that responsible for suppression at ISIs of 3–5 ms (GABAergic inhibitory circuits in the motor cortex) and suggest that the inhibitory influence evoked by the first stimulus should collide with or be occluded by the second stimulus, which leads to the lack of inhibition when the subjects make a voluntary contraction of the target muscle.
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Endogenous dopamine release induced by repetitive transcranial magnetic stimulation over the primary motor cortex: an [11C]raclopride positron emission tomography study in anesthetized macaque monkeys.
Takashi Ohnishi,Takuya Hayashi,Shingo Okabe,Ikuo Nonaka,Hiroshi Matsuda,Hidehiro Iida,Etsuko Imabayashi,Hiroshi Watabe,Yoshihiro Miyake,Mikako Ogawa,Noboru Teramoto,Yoichirou Ohta,Norimasa Ejima,Tohru Sawada,Yoshikazu Ugawa +14 more
TL;DR: The results suggest that therapeutic mechanisms of rTMS may be explained in part by an activation of the mesolimbic dopaminergic pathway, which plays critical roles in rewards, reinforcement, and incentive motivation.
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Differences in after-effect between monophasic and biphasic high-frequency rTMS of the human motor cortex
Noritoshi Arai,Shingo Okabe,Toshiaki Furubayashi,Hitoshi Mochizuki,Nobue K. Iwata,Ritsuko Hanajima,Yasuo Terao,Yoshikazu Ugawa +7 more
TL;DR: The present results suggest that when using rTMS as a therapeutic tool or in research fields, the waveforms of magnetic pulses may affect the results profoundly.
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