A novel ring electrode setup for the recording of somatosensory evoked potentials during transcranial direct current stimulation (tDCS)

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Deutscher übersetzter Titel:Ein neuartiges Ringelektroden-Setup für die Aufnahme von somatosensorisch evozierten Potentialen bei der transkraniellen Gleichstromstimulation (tDCS)
Autor:Sehm, Bernhard; Hoff, Maike; Gundlach, Christopher; Taubert, Marco; Conde, Virginia; Villringer, Arno; Ragert, Patrick
Erschienen in:Journal of neuroscience methods
Veröffentlicht:212 (2013), 2, S. 234-236, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0165-0270, 1872-678X
DOI:10.1016/j.jneumeth.2012.10.006
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Erfassungsnummer:PU201407006856
Quelle:BISp

Abstract

Transcranial direct current stimulation (tDCS) modulates cortical excitability thereby influencing behavior and learning. While previous studies focused on tDCS after-effects, limited information about “online” tDCS effects is available. This in turn is an important prerequisite to better characterize and/or optimize tDCS effects. Here, we aimed to explore the feasibility of recording low-artifact somatosensory evoked potentials (SEPs) during tDCS using a novel ring electrode setup. We recorded SEP before, during and after 10 min of anodal or sham tDCS using a full-band direct current (DC) EEG system in a total number of 3 subjects. SEPs were recorded in the bore of the tDCS ring electrode. Using this approach, no tDCS-induced artifacts could be observed after the application of a standard EEG filter. This new setup might help to better characterize how tDCS alters evoked brain responses thus providing novel insight into underlying physiological effects during stimulation. Verf.-Referat