Comparison of remote pressure and vibrotactile feedback for prosthetic hand control

Prosthetic hand users may benefit from incorporation of sensory feedback, but the optimal methods of providing such feedback are still unknown. The effect on object manipulation of adding vibrotactile and pressure feedback at remote body sites to visual feedback was assessed in 8 participants using a virtual and robotic interface. Both pressure and vibrotactile feedback improved some aspects of task performance when compared to visual feedback alone; however, no difference in object manipulation performance was seen between pressure and vibrotactile feedback.