Movement Error-processes and Sensorimotor Adaptation in Parkinsonian Patient

Inclusion Criteria: * Patient aged over 18 years * Right-handed patients , following the Modified Edinburgh Handedness Inventory * Patient with Parkinson's disease according to Gibb criteria * Idiopathic Parkinson's Disease with a history of more than 5 years * Stimulation electrodes implanted in the 2 subthalamic nuclei in the Functional and Stereotactic Neurosurgery Department of La Timone Hospital (Pr REGIS). * Dopa-sensitivity greater than 50% * Absence of signs of cognitive impairment * Patient who agreed to participate in the study and signed informed consent * Patient affiliated with a health insurance Exclusion Criteria: * Person not likely to participate in the entire study * Pregnant or likely to be pregnant during the year * Patients unable to give their informed consent (detainees, adults under guardianship) * Person unable to understand the nature and purpose of the study, or presneting with understanding difficulties which could compromise the proper conduct of the study * Person refusing to sign the Informed Consent Form * A person who is able to give his or her consent but unable to read / write French language * patient who can not participate in an MRI study according to the criteria listed in the attached form.