Fig. 1: Flowchart of study design.

Stim-off, stimulation turned off; Bi, bilateral; HFS, high frequency stimulation; LFS, low frequency stimulation; AFS, asymmetric frequency stimulation; L left; R, right; ES, Evaluation session.
Stim-off, stimulation turned off; Bi, bilateral; HFS, high frequency stimulation; LFS, low frequency stimulation; AFS, asymmetric frequency stimulation; L left; R, right; ES, Evaluation session.