FES as Biofeedback for an EMG Controlled Prosthetic Hand

The importance of providing with biofeedback when interacting with man-machine interfaces has to be considered when developing new applications, in particular, with externally powered prosthetic devices. In this study we look to develop a tactile biofeedback system for this purpose using electrical stimulation. In this paper we study the ability of the human body to recognize different patterns of stimulation using two methods: surface and interferential current stimulation and their influence over the EMG acquisition process. The goal is to develop an appropriate feedback source to the human body to be used along with an EMG controlled prosthetic hand.