Changes in Corticomotor Excitability and Intracortical Inhibition of the Primary Motor Cortex Forearm Area Induced by Anodal tDCS

Verfasser / Beitragende:
[Xue Zhang, Daniel G. Woolley, Stephan P. Swinnen, Hilde Feys, Raf Meesen, Nicole Wenderoth]
Ort, Verlag, Jahr:
2014
Enthalten in:
PLoS ONE, 9 (7), p. e101496
Format:
Artikel (online)
ID: 528784528
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024 7 0 |a 10.3929/ethz-b-000087142  |2 doi 
024 7 0 |a 10.1371/journal.pone.0101496  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/87142 
245 0 0 |a Changes in Corticomotor Excitability and Intracortical Inhibition of the Primary Motor Cortex Forearm Area Induced by Anodal tDCS  |h [Elektronische Daten]  |c [Xue Zhang, Daniel G. Woolley, Stephan P. Swinnen, Hilde Feys, Raf Meesen, Nicole Wenderoth] 
246 0 |a PLoS ONE 
506 |a Open access  |2 ethresearch 
520 3 |a Objective Previous studies have investigated how tDCS over the primary motor cortex modulates excitability in the intrinsic hand muscles. Here, we tested if tDCS changes corticomotor excitability and/or cortical inhibition when measured in the extensor carpi radialis (ECR) and if these aftereffects can be successfully assessed during controlled muscle contraction. Methods We implemented a double blind cross-over design in which participants (n = 16) completed two sessions where the aftereffects of 20 min of 1 mA (0.04 mA/cm2) anodal vs sham tDCS were tested in a resting muscle, and two more sessions where the aftereffects of anodal vs sham tDCS were tested in an active muscle. Results Anodal tDCS increased corticomotor excitability in ECR when aftereffects were measured with a low-level controlled muscle contraction. Furthermore, anodal tDCS decreased short interval intracortical inhibition but only when measured at rest and after non-responders (n = 2) were removed. We found no changes in the cortical silent period. Conclusion These findings suggest that targeting more proximal muscles in the upper limb with anodal tDCS is achievable and corticomotor excitability can be assessed in the presence of a low-level controlled contraction of the target muscle. 
540 |a Creative Commons Attribution 4.0 International  |u http://creativecommons.org/licenses/by/4.0  |2 ethresearch 
700 1 |a Zhang  |D Xue  |e joint author 
700 1 |a Woolley  |D Daniel G.  |e joint author 
700 1 |a Swinnen  |D Stephan P.  |e joint author 
700 1 |a Feys  |D Hilde  |e joint author 
700 1 |a Meesen  |D Raf  |e joint author 
700 1 |a Wenderoth  |D Nicole  |e joint author 
773 0 |t PLoS ONE  |d S.l. : Public Library of Science  |g 9 (7), p. e101496  |x 1932-6203 
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950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/87142  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Zhang  |D Xue  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Woolley  |D Daniel G.  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Swinnen  |D Stephan P.  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Feys  |D Hilde  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Meesen  |D Raf  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Wenderoth  |D Nicole  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t PLoS ONE  |d S.l. : Public Library of Science  |g 9 (7), p. e101496  |x 1932-6203 
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