A Study of Repetitive Transcranial Magnetic Stimulation in Bipolar Patients

Inclusion Criteria: * Bipolar Type I or II subjects diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) * Age 18-60 years * Rating on 24-items Hamilton Depression Rating Scale (HAMD)\<18 * Rating on the Young Mania Rating Scale (YMRS) \< 12 Exclusion Criteria: * History of any DSM-IV Axis I diagnosis other than BD Type I or II * Implanted medication pump or cardiac pacemaker; * Have had prior brain surgery * Any metal in the head (except in mouth) * Any disease of increased Intracranial pressure * Suicide attempt * Pharmacotherapy * unstable medical conditions * in the process of changing and redrawing withdrawing psychoactive medications within the past 4 weeks (except for sleeping medications such as benzodiazepines)