1. VA RR&D Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, Providence, RI, USA
2. Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
3. VA RR&D Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, 830 Chalkstone Avenue, Providence, RI 02908, USA