Figure 2From: Viewing medium affects arm motor performance in 3D virtual environmentsOverall endpoint (root mean square, RMS) errors (A), endpoint velocity (B) and trunk displacement (C) for the three groups: healthy (blue), stroke-mild (red) and stroke-moderate-to-severe (black). Data are overall mean (SD) values across all 6 targets and both media. Asterisks indicate significance. * p < 0.01, ** p < 0.005Back to article page