 Fifteen TMS treatment subjects will be selected from a patient population served in a free-standing psychiatric hospital program i.e., Sheppard Pratt Health System. There are approximately 40 patients currently enrolled in the TMS program and this is the TMS sampling frame of reference. Fifteen standard medication therapy subjects will be selected from a patient population treated in a private, outpatient psychiatric practice in Northern Virginia. There are hundreds of outpatients being treated in this outpatient practice and this is the standard medication therapy sampling frame of reference. 