Extended Data Fig. 2: The number of stimulations delivered during therapy is stable across a range of impairments and over therapy sessions.

The number of VNS events delivered during a rehabilitation sessions was not correlated with either baseline GRASSP score (a) or change in GRASSP score (b), indicating that the therapy was scaled by the level of impairment to ensure a consistent number of stimulations. Symbols denote individual participants. (c) Additionally, stimulation rate was stable across the duration of rehabilitative sessions, indicating that the algorithm was robust against effects of fatigue or other sources of variability in performance. Data are presented as mean ± SD number of VNS events per 10-minute bin over the course of each rehabilitation session for each participant.