1. Service of Psychology and Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy.
2. Neurorehabilitation and Spinal Unit, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy.
3. Department of Clinical-Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, Pavia, Italy.
4. Division of Physical Medicine and Rehabilitation and Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy.
5. Service of Bioengineering, Istituti Clinici Scientifici Maugeri, IRCCS, Veruno, Italy.