Brain Mechanisms of Social Perception in Parkinson's Disease

Patients with Parkinson disease and healthy volunteer are engaged in a social perception behavioral task.

"Patients with Parkinson disease and healthy volunteer are assessed by functional magnetic resonance imaging while they are engaged in a social perception behavioral task.~2 times for patients with Parkinson disease (during ON-levodopa and OFF-levodopa) Once for healthy volunteer"

Patients with Parkinson disease and healthy volunteer will undergo a neurological and neuropsychological assessment with several evaluations: weight, height, medical history, global cognitive performance (MoCA and BREF score), apathy (LARS score), depression (BDI-II score), social cognition (mini-SEA), and quality of life (PDQ39 self-questionnaire).

Patients with Parkinson disease will undergo a neurological assessment of motor and non-motor symptoms of Parkinson's disease (MDS-UPDRS III \& IV scale and MDS-NMS scale) and caregiver burden (Zarit scale).