Home-based Transcranial Static Magnetic Field Stimulation (tSMS) of the Supplementary Motor Area in Parkinson's Disease

Transcranial static magnetic field stimulation (tSMS) is a non-invasive brain stimulation (NIBS) technique that decreases cortical excitability. Static magnetic fields suitable for tSMS are obtained with commercially available neodymium magnets. The investigators will use a cylindrical neodymium magnet of 60 mm diameter and 30 mm of thickness (MAG60r; Neurek SL, Toledo, Spain), which will be applied with south polarity to the supplementary motor area (SMA) using an ergonomic helmet (MAGsv1.1, Neurek SL, Toledo, Spain).