Comparison of Different Non-invasive Electrical Stimulation Protocols to Facilitate Rehabilitation in Parkinson's Disease Subjects With Postural Instability and Gait Disorders

Exclusion Criteria

• •Any major systemic, psychiatric, neurological, visual, and musculoskeletal disturbances or other causes of walking inability
• •Medical conditions or substance abuse that could interfere with cognition
• •Pacemaker or other implanted neurostimulation devices in the head/neck district
• •(Other) Contraindications to undergoing MRI examination
• •Brain damage at routine MRI, including extensive cerebrovascular disorders
• •Denied oral and written informed consent to study participation
• •Significant scalp traumatic or surgical wounds or scalp alterations that could determine a risk of infection in the site of non-invasive stimulation or the spread of excessive current from the device (only for patients receiving the neurostimulation).