For electroencephalography (EEG) in haired regions of the head, finger-based electrodes have been proposed in order to part the hair and make a direct contact with the scalp. Previous work has demonstrated 3D-printed fingered electrodes to allow personalisation and different configurations of electrodes to be used for different people or for different parts of the head. This paper presents flexible 3D-printed EEG electrodes for the first time. A flexible 3D printing element is now used, with three different base mechanical structures giving differently-shaped electrodes. To obtain improved sensing performance, the silver coatings used previously have been replaced with a silver/silver-chloride coating. This results in reduced electrode contact impedance and reduced contact noise. Detailed electro-mechanical testing is presented to demonstrate the performance of the operation of the new electrodes, particularly with regards to changes in conductivity under compression, together with on-person tests to demonstrate the recording of EEG signals.
CITATION STYLE
Velcescu, A., Lindley, A., Cursio, C., Krachunov, S., Beach, C., Brown, C. A., … Casson, A. J. (2019). Flexible 3D-printed EEG electrodes. Sensors (Switzerland), 19(7). https://doi.org/10.3390/s19071650
Mendeley helps you to discover research relevant for your work.