Progressive Supranuclear Palsy (PSP) is a rapidly progressive neurodegenerative disease characterized by falls and oculomotor disturbances. Several clinical trials are currently evaluating the efficacy of new pharmacological compounds in slowing disease progression. Yet, both early diagnosis and evaluation of disease progression remain challenging. Study aims include verifying if specific motor, cognitive, language, cerebrospinal fluid and imaging assessments represent reliable biomarkers of PSP diagnosis, phenotypization and progression over 1-year follow up. Motor evaluation will include recordings from wearable sensors. Expected results include 1) improvement of PSP diagnosis and phenotypization; 2)improvement of evaluation of disease progression in the context of clinical trial; 3)enhancement of strategies to prevent falls and fractures in such patients leading, in turn, to significant cost savings for the National Health System.