3. Mapping of the upper extremity. After determination of the MT (motor threshold), mapping of the UE(Upper Extremity) will be performed at 110% of the rMT (resting motor threshold). All positive and negative stimulation sites will be recorded and saved. Patients will be closely monitored during TMS stimulation. Each subject will have a complete neurological examined by a neurologist before and immediately after nTMS. Patients will also be provided a side effects questionnaire after TMS mapping. Patients will then be asked to keep a 7 day seizure diary after the nTMS session.