A group of 40 patients with major depression will be randomly assigned to deep TMS with H-1 coil in frequency of 20 HZ or H-2 coil in frequency of 0.1 HZ with 120% of motor threshold to the prefrontal cortex . No change in anti-depressant medication one month prior to study is a prerequisite.Deep TMS will be administered for 4 weeks.During TMS exposure subjects will be exposed to a conversation in which they talk about their depression and their ruminations.Patients will be evaluated using Hamilton Depression Rating Scale (HAM-D24),Hamilton Anxiety Rating Scale (HAM-A),Clinical Global Impression - Improvement(CGI-I) ,Beck Depression Inventory (BDI),Visual Analog Scale (VAS).