1. Fondazione Policlinico Universitario ‘Agostino Gemelli’ IRCSS, Rome, Italy
2. Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
3. Institute of Internal Medicine and Geriatrics, Università Cattolica del Sacro Cuore, Rome, Italy
4. Department of Psychology, Sapienza Università di Roma, Rome, Italy
5. Ataxia Research Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy