Probing EEG activity in the targeted cortex after focal transcranial electrical stimulation

Syoichi Tashiro; Hartwig R Siebner; Angeliki Charalampaki; Cihan Göksu; Guilherme B Saturnino; Axel Thielscher; Leo Tomasevic

doi:10.1016/j.brs.2020.02.015

Probing EEG activity in the targeted cortex after focal transcranial electrical stimulation

Syoichi Tashiro, Hartwig R Siebner, Angeliki Charalampaki, Cihan Göksu, Guilherme B Saturnino, Axel Thielscher, Leo Tomasevic

3 Citationer (Scopus)

Abstrakt

BACKGROUND: Recording electroencephalography (EEG) from the targeted cortex immediately before and after focal transcranial electrical stimulation (TES) remains a challenge.

METHODS: We introduce a hybrid stimulation-recording approach where a single EEG electrode is inserted into the inner electrode of a double-ring montage for focal TES. The new combined electrode was placed at the C3 position of the EEG 10-20 system. Neuronal activity was recorded in two volunteers before and after 20 Hz alternating-current TES at peak-to-peak intensities of 1 and 2 mA. TES-induced electric field distributions were simulated with SIMNIBS software.

RESULTS: Using the hybrid stimulation-recording set-up, EEG activity was successfully recorded directly before and after TES. Simulations revealed comparable electrical fields in the stimulated cortex for the pseudomonopolar montage with and without embedded EEG electrode.

CONCLUSION: The hybrid TES-EEG approach can be used to probe after-effects of focal TES on neuronal activity in the targeted cortex.

Originalsprog	Engelsk
Tidsskrift	Brain Stimulation
Vol/bind	13
Udgave nummer	3
Sider (fra-til)	815-818
Antal sider	4
ISSN	1935-861X
DOI	https://doi.org/10.1016/j.brs.2020.02.015
Status	Udgivet - 1 maj 2020

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10.1016/j.brs.2020.02.015

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title = "Probing EEG activity in the targeted cortex after focal transcranial electrical stimulation",

abstract = "BACKGROUND: Recording electroencephalography (EEG) from the targeted cortex immediately before and after focal transcranial electrical stimulation (TES) remains a challenge.METHODS: We introduce a hybrid stimulation-recording approach where a single EEG electrode is inserted into the inner electrode of a double-ring montage for focal TES. The new combined electrode was placed at the C3 position of the EEG 10-20 system. Neuronal activity was recorded in two volunteers before and after 20 Hz alternating-current TES at peak-to-peak intensities of 1 and 2 mA. TES-induced electric field distributions were simulated with SIMNIBS software.RESULTS: Using the hybrid stimulation-recording set-up, EEG activity was successfully recorded directly before and after TES. Simulations revealed comparable electrical fields in the stimulated cortex for the pseudomonopolar montage with and without embedded EEG electrode.CONCLUSION: The hybrid TES-EEG approach can be used to probe after-effects of focal TES on neuronal activity in the targeted cortex.",

keywords = "Electrical field simulation, Electroencephalography, Transcranial alternating current stimulation, Transcranial electrical stimulation",

author = "Syoichi Tashiro and Siebner, {Hartwig R} and Angeliki Charalampaki and Cihan G{\"o}ksu and Saturnino, {Guilherme B} and Axel Thielscher and Leo Tomasevic",

year = "2020",

month = may,

day = "1",

doi = "10.1016/j.brs.2020.02.015",

language = "English",

volume = "13",

pages = "815--818",

journal = "Brain Stimulation",

issn = "1935-861X",

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TY - JOUR

T1 - Probing EEG activity in the targeted cortex after focal transcranial electrical stimulation

AU - Tashiro, Syoichi

AU - Siebner, Hartwig R

AU - Charalampaki, Angeliki

AU - Göksu, Cihan

AU - Saturnino, Guilherme B

AU - Thielscher, Axel

AU - Tomasevic, Leo

PY - 2020/5/1

Y1 - 2020/5/1

N2 - BACKGROUND: Recording electroencephalography (EEG) from the targeted cortex immediately before and after focal transcranial electrical stimulation (TES) remains a challenge.METHODS: We introduce a hybrid stimulation-recording approach where a single EEG electrode is inserted into the inner electrode of a double-ring montage for focal TES. The new combined electrode was placed at the C3 position of the EEG 10-20 system. Neuronal activity was recorded in two volunteers before and after 20 Hz alternating-current TES at peak-to-peak intensities of 1 and 2 mA. TES-induced electric field distributions were simulated with SIMNIBS software.RESULTS: Using the hybrid stimulation-recording set-up, EEG activity was successfully recorded directly before and after TES. Simulations revealed comparable electrical fields in the stimulated cortex for the pseudomonopolar montage with and without embedded EEG electrode.CONCLUSION: The hybrid TES-EEG approach can be used to probe after-effects of focal TES on neuronal activity in the targeted cortex.

AB - BACKGROUND: Recording electroencephalography (EEG) from the targeted cortex immediately before and after focal transcranial electrical stimulation (TES) remains a challenge.METHODS: We introduce a hybrid stimulation-recording approach where a single EEG electrode is inserted into the inner electrode of a double-ring montage for focal TES. The new combined electrode was placed at the C3 position of the EEG 10-20 system. Neuronal activity was recorded in two volunteers before and after 20 Hz alternating-current TES at peak-to-peak intensities of 1 and 2 mA. TES-induced electric field distributions were simulated with SIMNIBS software.RESULTS: Using the hybrid stimulation-recording set-up, EEG activity was successfully recorded directly before and after TES. Simulations revealed comparable electrical fields in the stimulated cortex for the pseudomonopolar montage with and without embedded EEG electrode.CONCLUSION: The hybrid TES-EEG approach can be used to probe after-effects of focal TES on neuronal activity in the targeted cortex.

KW - Electrical field simulation

KW - Electroencephalography

KW - Transcranial alternating current stimulation

KW - Transcranial electrical stimulation

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U2 - 10.1016/j.brs.2020.02.015

DO - 10.1016/j.brs.2020.02.015

M3 - Journal article

C2 - 32289712

VL - 13

SP - 815

EP - 818

JO - Brain Stimulation

JF - Brain Stimulation

SN - 1935-861X

IS - 3

ER -

Probing EEG activity in the targeted cortex after focal transcranial electrical stimulation

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