Easily Attach/Detach Reattachable EEG Headset with Candle-like Microneedle Electrodes

Easily Attach/Detach Reattachable EEG Headset with Candle-like Microneedle Electrodes

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To expand the applications of the electroencephalogram (EEG), long-term measurement, a short installation time, and little stress on the participants are needed.In this study, we Exhaust Trim Rings designed, fabricated, and evaluated an EEG headset with three candle-like microneedle electrodes (CMEs).The user is able to detach and reattach the electrodes, enabling long-term measurement with little stress.The design of the CMEs was experimentally determined by considering the skin-to-electrode impedance and user comfort.

An EEG was successfully measured from areas with a high hair density without any preparation.The installation time was shorter than 60 s and the electrodes could be detached and reattached.The headset was designed such that the discomfort caused by its Footwear ear pads was higher than that caused by the electrodes.In 1 h experiments, the participants did not feel pain and the detachment of the CMEs was found to improve the comfort level of the participants in most cases.

A successful demonstration of the long-term measurement of EEGs while watching a whole movie verified that the developed EEG headset with CMEs is applicable for EEG measurement in a variety of applications.