New publication on simultaneous dry and gel-based high-density Electroencephalography

Evaluations of new dry, high-density EEG caps have only been performed so far with serial measurements and not with simultaneous (parallel) measurements. For a first comparison of gel-based and dry electrode performance in simultaneous high-density EEG measurements, we developed a new EEG cap comprising 64 gel-based and 64 dry electrodes and performed simultaneous measurements on ten volunteers. We analyzed electrode–skin impedances, resting state EEG, triggered eye blinks, and visual evoked potentials (VEPs). To overcome the issue of different electrode positions in the comparison of simultaneous measurements, we performed spatial frequency analysis of the simultaneously measured EEGs using spatial harmonic analysis (SPHARA).

Fiedler, P.; Graichen, U.; Zimmer, E.; Haueisen, J.:

Simultaneous Dry and Gel-Based High-Density Electroencephalography Recordings. Sensors 2023, 23, 9745.

https://doi.org/10.3390/s23249745

Contact:       Prof. Dr.-Ing. habil. Jens Haueisen
                    Jun.-Prof. Dr.-Ing. Patrique Fiedler