Automatic M1-SO Montage Headgear for Transcranial Direct Current Stimulation (TDCS) Suitable for Home and High-Throughput In-Clinic Applications

Neuromodulation : Journal of the International Neuromodulation Society
Helena KnotkovaMarom Bikson

Abstract

Non-invasive transcranial direct current stimulation (tDCS) over the motor cortex is broadly investigated to modulate functional outcomes such as motor function, sleep characteristics, or pain. The most common montages that use two large electrodes (25-35 cm2 ) placed over the area of motor cortex and contralateral supraorbital region (M1-SO montages) require precise measurements, usually using the 10-20 EEG system, which is cumbersome in clinics and not suitable for applications by patients at home. The objective was to develop and test novel headgear allowing for reproduction of the M1-SO montage without the 10-20 EEG measurements, neuronavigation, or TMS. Points C3/C4 of the 10-20 EEG system is the conventional reference for the M1 electrode. The headgear was designed using an orthogonal, fixed-angle approach for connection of frontal and coronal headgear components. The headgear prototype was evaluated for accuracy and replicability of the M1 electrode position in 600 repeated measurements compared to manually determined C3 in 30 volunteers. Computational modeling was used to estimate brain current flow at the mean and maximum recorded electrode placement deviations from C3. The headgear includes navigational points for acc...Continue Reading

References

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Citations

Nov 7, 2019·Journal of Neural Engineering·Jimmy JiangMarom Bikson
Jun 20, 2020·Biomedical Engineering Online·Alexander HunoldJens Haueisen
Dec 17, 2020·Frontiers in Neurology·Abrahão Fontes BaptistaYossi Zana
Jul 10, 2021·Neurodegenerative Disease Management·Emma GulleyHelena Knotkova

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