Deep Brain Stimulation: A New Frontier in Psychiatry provides an overview of current developments and the future possibilities of deep brain stimulation for patients with therapy-refractory psychiatric disorders. The side-by-side presentation of clinical applications and animal research provides a truly translational approach. Also included is a special chapter on the ethical issues involved in deep brain stimulation in psychiatry. Deep brain stimulation of selected brain areas has been shown to result in a substantial improvement of symptoms and quality of life in patients suffering from obsessive-compulsive disorder, major depressive disorder and drug addiction. Although it is still an experimental therapy and the number of psychiatric patients that are treated is low, its effectiveness and safety makes deep brain stimulation the most promising therapy for treating other serious and life-threatening psychiatric conditions.