1. Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
2. Department of Psychology, “Sapienza” University of Rome, 00185 Rome, Italy
3. Parkinson’s Disease Unit, University Hospital of Rome “Tor Vergata”, 00133 Rome, Italy
4. Department of Clinical Science and Translational Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy
5. Neurology Unit, University Hospital of Rome “Tor Vergata”, 00133 Rome, Italy