Regardless of group assignment, there will be five blocks of 10 repetitions of finger exercise per session, 200 per week, and 1,000 throughout the whole study. During the study sessions, patients will be able to talk and move around. They can take a break and leave the room if needed. In most cases, the session will take less than 2 hours. There also will be a control group whose members will not be training their fingers but who will participate only in the testing sessions. TMS is a safe procedure; however, strong contractions of scalp muscles have been known to cause headaches. Also, because of the distracting noise of the TMS, patients will be fitted with earplugs to wear during the procedure.