Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation

Abstract Neuromodulation induced by transcranial electric stimulation (TES) exhibited promising potential for clinical practice. However, the underlying mechanisms remain subject of research. The combination of TES and electroencephalography (EEG) offers great potential for investigating these mecha...

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Autores principales:	Sophia Wunder, Alexander Hunold, Patrique Fiedler, Falk Schlegelmilch, Klaus Schellhorn, Jens Haueisen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c839d4c5e24244f895e4ed749d2bd5c2
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spelling	oai:doaj.org-article:c839d4c5e24244f895e4ed749d2bd5c22021-12-02T12:32:10ZNovel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation10.1038/s41598-018-25562-x2045-2322https://doaj.org/article/c839d4c5e24244f895e4ed749d2bd5c22018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25562-xhttps://doaj.org/toc/2045-2322Abstract Neuromodulation induced by transcranial electric stimulation (TES) exhibited promising potential for clinical practice. However, the underlying mechanisms remain subject of research. The combination of TES and electroencephalography (EEG) offers great potential for investigating these mechanisms and brain function in general, especially when performed simultaneously. In conventional applications, the combination of EEG and TES suffers from limitations on the electrode level (gel for electrode-skin interface) and the usability level (preparation time, reproducibility of positioning). To overcome these limitations, we designed a bifunctional cap for simultaneous TES–EEG applications. We used novel electrode materials, namely textile stimulation electrodes and dry EEG electrodes integrated in a flexible textile cap. We verified the functionality of this cap by analysing the effect of TES on visual evoked potentials (VEPs). In accordance with previous reports using standard TES, the amplitude of the N75 component was significantly decreased post-stimulation, indicating the feasibility of using this novel flexible cap for simultaneous TES and EEG. Further, we found a significant reduction of the P100 component only during TES, indicating a different brain modulation effect during and after TES. In conclusion, the novel bifunctional cap offers a novel tool for simultaneous TES–EEG applications in clinical research, therapy monitoring and closed-loop stimulation.Sophia WunderAlexander HunoldPatrique FiedlerFalk SchlegelmilchKlaus SchellhornJens HaueisenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sophia Wunder Alexander Hunold Patrique Fiedler Falk Schlegelmilch Klaus Schellhorn Jens Haueisen Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
description	Abstract Neuromodulation induced by transcranial electric stimulation (TES) exhibited promising potential for clinical practice. However, the underlying mechanisms remain subject of research. The combination of TES and electroencephalography (EEG) offers great potential for investigating these mechanisms and brain function in general, especially when performed simultaneously. In conventional applications, the combination of EEG and TES suffers from limitations on the electrode level (gel for electrode-skin interface) and the usability level (preparation time, reproducibility of positioning). To overcome these limitations, we designed a bifunctional cap for simultaneous TES–EEG applications. We used novel electrode materials, namely textile stimulation electrodes and dry EEG electrodes integrated in a flexible textile cap. We verified the functionality of this cap by analysing the effect of TES on visual evoked potentials (VEPs). In accordance with previous reports using standard TES, the amplitude of the N75 component was significantly decreased post-stimulation, indicating the feasibility of using this novel flexible cap for simultaneous TES and EEG. Further, we found a significant reduction of the P100 component only during TES, indicating a different brain modulation effect during and after TES. In conclusion, the novel bifunctional cap offers a novel tool for simultaneous TES–EEG applications in clinical research, therapy monitoring and closed-loop stimulation.
format	article
author	Sophia Wunder Alexander Hunold Patrique Fiedler Falk Schlegelmilch Klaus Schellhorn Jens Haueisen
author_facet	Sophia Wunder Alexander Hunold Patrique Fiedler Falk Schlegelmilch Klaus Schellhorn Jens Haueisen
author_sort	Sophia Wunder
title	Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
title_short	Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
title_full	Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
title_fullStr	Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
title_full_unstemmed	Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
title_sort	novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/c839d4c5e24244f895e4ed749d2bd5c2
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Novel bifunctional cap for simultaneous electroencephalography and transcranial electrical stimulation

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