Myoelectricity -- muscles that are unused/unusable but still have nervous control are tapped for motive signals, and the user learns to associate the path fairl

Myoelectricity -- muscles that are unused/unusable but still have nervous control are tapped for motive signals, and the user learns to associate the path fairly quickly. The feedback is generally by direct electrical stimulation from pressure-sensitive receptors in the "fingertips" -- the intensity of the stimulation and the pattern can both be used to indicate pressure, heat (a burn may not cause injury to the wearer, but it could cause harm to the prosthesis) and so on, and may be paired with mechanical feedback (a series of "joy buzzers", if you will).