1. California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, CA, USA.
2. Tianqiao and Chrissy Chen Brain-Machine Interface Center, California Institute of Technology, Pasadena, CA, USA.
3. Casa Colina Hospital and Centers for Healthcare, Pomona, CA, USA.
4. Department of Neurosurgery, University of California Los Angeles, Los Angeles, CA, USA.
5. Department of Medicine and Surgery, University of Parma, Parma, Italy.