To this end, the clinical researchers from Japan recruited twenty-three patients with PD or Parkinson’s syndrome. All study participants were randomly assigned to receive either the active treatment or a “sham” treatment that mimics the active treatment but does not offer any therapeutic benefit.
During the course of the trial, an electrode carrying a low current (up to 2 mA) was externally affixed to the occipital region of the head. A reference electrode was then placed in the neck region to establish a stable electrical reference point and to complete the electrical circuit. The treatment included performing tES on the cerebellum in a non-invasive manner. The brain side showing severe impact was specifically targeted during the electrotherapy.
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