- Participant will have 2 standard pre-surgical brain mapping procedures: functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS). For the fMRI, participant will lie inside of a long scanner and be asked to perform several simple tasks. The scan will show areas of the brain that are active during specific tasks. During the TMS procedure, a magnetic coil is moved over certain areas of participant's head to stimulate the parts of the brain that cause muscles in participant's arms and legs to move. This will help the doctor learn which specific parts of participant's brain control participant's limbs.