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Weak rTMS-induced electric fields produce neural entrainment in humans

Permanent lenke
https://hdl.handle.net/10037/19148
DOI
https://doi.org/10.1038/s41598-020-68687-8
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Åpne
article.pdf (6.165Mb)
Publisert versjon (PDF)
Dato
2020-07-20
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Zmeykina, Elina; Mittner, Matthias; Paulus, Walter; Turi, Zsolt
Sammendrag
Repetitive transcranial magnetic stimulation (rTMS) is a potent tool for modulating endogenous oscillations in humans. The current standard method for rTMS defines the stimulation intensity based on the evoked liminal response in the visual or motor system (e.g., resting motor threshold). The key limitation of the current approach is that the magnitude of the resulting electric field remains elusive. A better characterization of the electric field strength induced by a given rTMS protocol is necessary in order to improve the understanding of the neural mechanisms of rTMS. In this study we used a novel approach, in which individualized prospective computational modeling of the induced electric field guided the choice of stimulation intensity. We consistently found that rhythmic rTMS protocols increased neural synchronization in the posterior alpha frequency band when measured simultaneously with scalp electroencephalography. We observed this effect already at electric field strengths of roughly half the lowest conventional field strength, which is 80% of the resting motor threshold. We conclude that rTMS can induce immediate electrophysiological effects at much weaker electric field strengths than previously thought.
Forlag
Springer
Sitering
Zmeykina, Mittner, Paulus, Turi. Weak rTMS-induced electric fields produce neural entrainment in humans. Scientific Reports. 2020;10(1)
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  • Artikler, rapporter og annet (psykologi) [561]
Copyright 2020 The Author(s)

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