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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/21235

Title: Evaluation of a Modified High-Definition Electrode Montage for Transcranial Alternating Current Stimulation (tACS) of Pre-Central Areas
Authors: Heise, Kirstin-Friederike
Kortzorg, Nick
Bicalho Saturnino, Guilherme
Fujiyama, Hakuei
Cuypers, Koen
Thielscher, Axel
Swinnen, Stephan
Issue Date: 2016
Citation: Brain Stimulation, 9(5), p. 700-704
Abstract: Objective To evaluate a modified electrode montage with respect to its effect on tACS-dependent modulation of corticospinal excitability and discomfort caused by neurosensory side effects accompanying stimulation. Methods In a double-blind cross-over design, the classical electrode montage for primary motor cortex (M1) stimulation (two patch electrodes over M1 and contralateral supraorbital area) was compared with an M1 centre-ring montage. Corticospinal excitability was evaluated before, during, immediately after and 15 minutes after tACS (10 min., 20 Hz vs. 30 s low-frequency transcranial random noise stimulation). Results Corticospinal excitability increased significantly during and immediately after tACS with the centre-ring montage. This was not the case with the classical montage or tRNS stimulation. Level of discomfort was rated on average lower with the centre-ring montage. Conclusions In comparison to the classic montage, the M1 centre-ring montage enables a more focal stimulation of the target area and, at the same time, significantly reduces neurosensory side effects, essential for placebo-controlled study designs.
Notes: Heise, KF (reprint author), Katholieke Univ Leuven, Movement Control & Neuroplast Res Grp, Dept Kinesiol, Tervuurse Vest 101, B-3001 Leuven, Belgium kirstin.heise@kuleuven.be
URI: http://hdl.handle.net/1942/21235
DOI: 10.1016/j.brs.2016.04.009
ISI #: 000382499100007
ISSN: 1935-861X
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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