Fig. 3. Task timeline and raw and spectral analyses with detection test bench.

(A) Task timeline of the recordings. Top: Cued-go hand opening and closing task. Bottom: Cued-go cup reaching task, where no rest cues were delivered. The boxes with a dashed border indicate the volitional actions the subject took during the task (following previous cued commands). (B) Data collected in a single patient (ET03) during a single cued-go cup reaching task along with contralateral and ipsilateral hand accelerations with respect to the side of implantation. The subjects were asked to prepare to move with the CUED hand (yellow). GO CUE (green) represents when the subjects were asked to reach the cup, and MOVEMENT (violet) represents when the patients proceeded to execute the movement. The bottom two plots show the outcome of the embedded movement detection (blue blocks indicate movement detection) and the stimulation estimate (considering the delivering during the contralateral/affected limb, it had an accuracy of 96.44%, a specificity of 95%, and a sensitivity of 97%). No DBS was delivered during this trial. Stimulation estimate is solely presented to show the feasibility of the paradigm (stimulation range = 0 to 2.5 V, ramp-up/down = 1.25 V/s). Therefore, tremor was present during each movement, unsuppressed. (C) Normalized event-related desynchronization and synchronization (ERD-ERS) spectrograms aligned to three events: cue, MO, and movement termination (MT) for contralateral and ipsilateral hand movements. (D) Zoomed section of raw recording from (B) during contralateral reaching movement.