figure 8.1 Glove anesthesia In this conversion symptom (left), the entire hand, extending from the fingertips to the wrist, becomes numb. Actual physical damage (right) to the ulnar nerve, in contrast, causes anesthesia in the ring finger and little finger and beyond the wrist partway up the arm; damage to the radial nerve causes loss of feeling only in parts of the ring, middle, and index fingers and the thumb and partway up the arm. (Information from: Gray, 1959.)