1. Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77004, USA
2. Noninvasive Brain-Machine Interface Systems Laboratory, NSF Industry—University Cooperative Research Center for Building Reliable Advances and Innovations in Neurotechnology (IUCRC BRAIN) Center, University of Houston, Houston, TX 77004, USA
3. Department of Biomedical Engineering, University of Houston, Houston, TX 77004, USA
4. Department of Electrical Engineering, Jazan University, Jazan 45142, Saudi Arabia
5. Department of Industrial Design, University of Houston, Houston, TX 77004, USA
6. Department of Physical Medicine & Rehabilitation, University of Texas Health McGovern Medical School, Houston, TX 77030, USA
7. The Institute for Rehabilitation and Research (TIRR) Memorial Hermann Hospital, Houston, TX 77030, USA