1. U.O.C. Neurologia e Stroke Unit, A.S.S.L. Nuoro, A.T.S., Sardegna, Nuoro, Italy;
2. Department of Psychology, “Sapienza” University of Rome, Rome, Italy;
3. I.R.C.S.S. “Santa Lucia” Foundation, Rome, Italy;
4. BioCruces Health Research Institute, Cruces University Hospital, Barakaldo, Spain;
5. Department of Psychiatry, University of California, San Diego (UCSD), San Diego, CA, USA;
6. IKERBASQUE, Basque Foundation for Science, Bilbao, Spain