Figure 1.

(A) Aggregate data for Fugl-Meyer scores for participants with stroke. ¹⁴ Black trace represents initial scores and grey trace represents final scores. (B) Schematic reflecting how the range of possible Fugl-Meyer scores falls below the range of abilities typically observed in healthy individuals. Gaussian distribution denotes variation of skills for healthy individuals. Vertical grey lines denote two individuals’ (S1 and S2) abilities are different pre-stroke, but are similar initially after stroke. (C) Exemplar subject performance on the visually guided reaching (VGR) task. Top traces are hand paths for the most affected arm (or the non-dominant arm for the healthy control participant). The black traces are the trials that correspond to the hand speed shown below in the bottom traces. Participant on the left is a control participant (male, 70 years, right handed) who had no impairments on the task (Z-Task Score = −0.69). The middle participant (male, 71 years old, right affected) was assessed 2 days post-stroke and showed mild impairments on the task (Z-Task Score = 2.82). Participant on the right (male, 69 years, right affected) was assessed 28 days post-stroke and showed more severe impairments on the task (Z-Task Score = 7.12).