Figure 7
From: Effects of kinematic vibrotactile feedback on learning to control a virtual prosthetic arm
Effects of removing vibrotactile feedback (VIBF) on measures of task performance (error, movement time, and skill) for groups receiving position-based (POS VIBF) and velocity-based (VEL VIBF) vibrotactile feedback. All measures are relative to performance on the nominal feedback condition, in which visual feedback was available in addition to VIBF. A subset of participants in the POS VIBF group improved their skill when VIBF was removed leaving only vision (†), while other participants showed no change in skill (individual subject data points are overlaid). Means and standard deviations shown. *Significantly different from zero at p < .05.