Cerebellar Transcranial Direct Current Stimulation (tDCS) in Patients With Isolated Cervical Dystonia (CD)

CtDCS will be delivered using an DC-stimulator and two saline-soaked sponge electrodes: one electrode placed 3 cm lateral to the right of the inion, the other electrode on the right buccinator muscle. A 2 mA current will be delivered through these electrodes for a duration of 20 minutes with a 8-second fade-in and fade-out.

The tDCS procedure will be identical to the active (anodal and cathodal) stimulation condition, but stimulation will cease after 30 seconds.