Inclusion Criteria:  Above criteria and must understand and speak English.  Exclusion Criteria:  Contraindications to MRI, CT, or TMS  Claustrophobia Pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants. Pregnancy Active medical disorder or treatment with potential CNS effects History of neurologic disorder History of head injury resulting in loss of consciousness for >10 minutes History of alcohol or drug dependence