Fig. 3From: Sensory substitution of elbow proprioception to improve myoelectric control of upper limb prosthesis: experiment on healthy subjects and amputeesA, B Boxplot showing the dispersion by quartile of the mean of the absolute difference from the avatar’s hand to the target after movements in one direction for healthy subjects and subjects with an amputation. Feedback condition are no feedback at all (NO), vibration only (VIB), vision only (VIS) and the combination of vision and vibration (VIS+VIB) for healthy A and amputees B. C, D shows the boxplot of the dispersion by quartile of the mean of the absolute difference from the avatar’s hand to the target for maximum and minimum scores during back-and-forth movements for healthy C and amputees DBack to article page