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Cited by 284

The DOI matches its Crossref record; 56 of the 56 references it cites were found in a registry or an index.

Bidirectional long‐term motor cortical plasticity and metaplasticity induced by quadripulse transcranial magnetic stimulation

Open access
Hamada, Masashi, Terao, Yasuo, Hanajima, Ritsuko, Shirota, Yuichiro, Nakatani‐Enomoto, Setsu, Furubayashi, Toshiaki, Matsumoto, Hideyuki, Ugawa, Yoshikazu·2008·The Journal of Physiology

Abstract

Repetitive transcranial magnetic stimulation (rTMS) has emerged as a promising tool to induce plastic changes that are thought in some cases to reflect N‐methyl‐d‐aspartate‐sensitive changes in synaptic efficacy. As in animal experiments, there is some evidence that the sign of rTMS‐induced plasticity depends on the prior history of cortical activity, conforming to the Bienenstock–Cooper–Munro (BCM) theory. However, experiments exploring these plastic changes have only examined priming‐induced effects on a limited number of rTMS protocols, often using designs in which the priming alone had a larger effect than the principle conditioning protocol. The aim of this study was to introduce a new rTMS protocol that gives a broad range of after‐effects from suppression to facilitation and then test how each of these is affected by a priming protocol that on its own has no effect on motor cortical excitability, as indexed by motor‐evoked potential (MEP). Repeated trains of four monophasic TMS pulses (quadripulse stimulation: QPS) separated by interstimulus intervals of 1.5–1250 ms produced a range of after‐effects that were compatible with changes in synaptic plasticity. Thus, QPS at short intervals facilitated MEPs for more than 75 min, whereas QPS at long intervals suppressed MEPs for more than 75 min. Paired‐pulse TMS experiments exploring intracortical inhibition and facilitation after QPS revealed effects on excitatory but not inhibitory circuits of the primary motor cortex. Finally, the effect of priming protocols on QPS‐induced plasticity was consistent with a BCM‐like model of priming that shifts the crossover point at which synaptic plasticity reverses from depression to potentiation. The broad range of after‐effects produced by the new rTMS protocol opens up new possibilities for detailed examination of theories of metaplasticity in humans.

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Metadata

Authors
Hamada, M., Terao, Y., Hanajima, R., Shirota, Y., Nakatani‐Enomoto, S., Furubayashi, T., Matsumoto, H., & Ugawa, Y.
Venue
The Journal of Physiology
Publisher
Wiley
Published
2008-08-15
Volume
586
Issue
16
Pages
3927-3947
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W1529597595
Cited by
284
References
56
FWCI
8.80
Type
journal article
Language
en
Open access
green

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Hamada, M., Terao, Y., Hanajima, R., Shirota, Y., Nakatani‐Enomoto, S., Furubayashi, T., Matsumoto, H., & Ugawa, Y. (2008). Bidirectional long‐term motor cortical plasticity and metaplasticity induced by quadripulse transcranial magnetic stimulation. The Journal of Physiology. https://doi.org/10.1113/jphysiol.2008.152793

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