Frontiers in Human Neuroscience
401 (12 pg.)
With the recent surge of affordable, high-performance virtual reality (VR) headsets, there is unlimited potential for applications ranging from education, to training, to entertainment, to fitness and beyond. As these interfaces continue to evolve, passive user-state monitoring can play a key role in expanding the immersive VR experience, and tracking activity for user well-being. By recording physiological signals such as the electroencephalogram (EEG) during use of a VR device, the user's interactions in the virtual environment could be adapted in real-time based on the user's cognitive state. Current VR headsets provide a logical, convenient, and unobtrusive framework for mounting EEG sensors. The present study evaluates the feasibility of passively monitoring cognitive workload via EEG while performing a classical n-back task in an interactive VR environment. Data were collected from 15 participants and the spatio-spectral EEG features were analyzed with respect to task performance. The results indicate that scalp measurements of electrical activity can effectively discriminate three workload levels, even after suppression of a co-varying high-frequency activity.
Original Publication Citation
Tremmel, C., Herff, C., Sato, T., Rechowicz, K., Yamani, Y., & Krusienski, D. J. (2019). Estimating cognitive workload in an interactive virtual reality environment using EEG. Frontiers in Human Neuroscience, 13, 401. doi:10.3389/fnhum.2019.00401
Tremmel, Christoph; Herff, Christain; Sato, Tetsuya; Rechowicz, Krzysztof; Yamani, Yusuke; and Krusienski, Dean J., "Estimating Cognitive Workload in an Interactive Virtual Reality Environment Using EEG" (2019). Electrical & Computer Engineering Faculty Publications. 233.