Electrical stimulation was delivered by an external stimulator (top left) through percutaneous leads to FINEs implanted on the median, ulnar, and radial nerves of an upper-limb amputee (bottom left). Stimulation consists of trains of square, biphasic, charge-balanced pulses delivered to individual contacts in the eight-channel FINE. The FINE reshapes the nerve and achieves close proximity between the fascicles and the stimulating contacts, improving selectivity. Each electrode contact evokes sensory percepts on small regions of the missing hand of the subject.