Inclusion Criteria:  Understand and speak English  Exclusion Criteria:  MRI/CT/EEG contraindications.  Claustrophobia Contraindications to MRI: including pacemaker, aneurysm clips, neurostimulators, cochlear implants, metal in eyes, steel worker, or other implants. Contraindications to CT: 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 Failure to provide Social Security Number or Tax ID number. This is required for tax purposes or payment cannot be processed.