Brain stimulation therapies for psychiatric disorders: The first decade of the new millennium--A review.

Three new brain stimulation therapies have emerged in the last decade for clinical use in psychiatric disorders. Combined with electroconvulsive therapy (ECT), these therapies offer much hope to patients with medication refractory depression, obsessive-compulsive disorder and auditory hallucinations of schizophrenia. In this article we briefly review the history, development and evidence for each of the four stimulation therapies and describe the current state-of-the-art.