Development and Evaluation of Dry Electroencephalography (EEG) Systems Towards Applications in Remote Patient Monitoring

The primary objectives of this project were to evaluate the signal quality of dry electroencephalography (EEG) electrodes, and to develop an EEG headset that optimized usability and electrode performance. Two iterations of adjustable headsets were designed and tested using a side-by-side comparison method between wet (Ag/AgCl) and dry electrodes. The overall performance of the dry electrodes varied between participants and electrode sites, but high signal quality was demonstrated under ideal conditions. The major design outcome from the first round of testing involved adding the ability to independently adjust the angle of each electrode on the headset. Design recommendations from the second round of testing included increasing the range of the applied force on each electrode. A series of additional recommendations and guidelines were created for future headset development in order to promote consistently high signal quality from dry electrodes.M.H.Sc