DBS - Deep Brain Stimulation (Wiki) ??????

Also referred to as a pacemaker for the brain, DBS seems to act as an antidepressant in mentally ill patients. Indeed, the treatment also seems to block tremors related to Parkinson's disease et al. So far, at the time of writing, approximately 40,000 patients worldwide have undergone the procedure. However, despite this, the procedure is still in it's infancy and requires much more research. Of the 40,000 patients who have undergone the treatment, only a handful have undergone it to fight MDD (Major Depressive Disorder) or OCD (Obsessive Compulsive Disorder), and each time the patient was treated under close surveillance. Happily, preliminary evidence is promising in the fields aforementioned.

One patient showed remarkable improvement, saying "I'm starting to smile" upon activation of the device and indeed, patients who failed to respond even to ECT (Electro-Convulsive Therapy) exhibited symptoms of improvement, often very quickly. More than 50% of patients undergoing DBS in a controlled study of 26 OCD sufferers showed significant improvement and 6 of 17 (35%) patients suffering from MDD were in remission a year after undergoing the procedure; a further 4 were markedly improved (Cleveland Clinic, Brown University, and Belgium's University of Leuven). Dr. Helen Mayberg of Emory University estimated, having performed the procedure on 50 patients with MDD, that 66% of patients undergoing DBS could be classified as "responders" not long after. Sadly, the procedure is dogged by the threat of nasty side effects.