1 Movement Disorders Unit, Neurology Service, Internal Medicine Department, Hospital de Clínicas, Federal University of Paraná, Curitiba, Paraná, Brazil.
2 Clinical Psychoacoustics Lab, 3rd Psychiatric Department, Neurosciences Sector, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.
3 Unité des Ataxies Cérébelleuses, Service de Neurologie, CHU-Charleroi, Charleroi, Belgium. mario.manto@ulb.be.
4 Service des Neurosciences, Université de Mons, Mons, Belgium. mario.manto@ulb.be.