18.10.2021

Two new publications

Two new publications on improving comfort of dry electrodes for electroencephalography

3D model of Multipin and Arch dry EEG electrode designs and an illustration of the deformation of the arch electrode under application of a radial force to the tip of the arch.

Electroencephalography is increasingly used for repetitive applications such as neurofeedback, brain-computer interfaces, and long-term monitoring. Flexible dry electrodes allow rapid preparation and self-application by the user. The electrode shape must easily pass through the hair layer and provide stable, reproducible and comfortable contact with the skin. A common limitation of currently available commercial dry electrodes is the limited contact area of the electrodes and resulting  comfort during prolonged application. When used in multi-channel setups, inhomogeneous pressure distribution across the electrode array can lead to spots of excessive pressure, significantly compromising wearing comfort.

Two recent publications address these limitations and demonstrate successful ways to improve the wearing comfort of dry electrodes:

Vasconcelos, B.; Fiedler, P.; Machts, R.; Haueisen, J.; Fonseca, C.: The Arch Electrode:

A Novel Dry Electrode Concept for Improved Wearing Comfort, Font. Neurosci., 15:748100. doi: 10.3389/fnins.2021.748100

doi.org/10.3389/fnins.2021.748100

Heijs, J.J.A.; Havelaar, R.J.; Fiedler, P.; Van Wezel, R.J.A.; Heida, T.:

Validation of soft, multipin, dry EEG electrodes, Sensors, 21(20):6827. doi: 10.3390/s21206827

http://doi.org/10.3390/s21206827