deep brain stimulationDeep brain stimulation (DBS) is a therapeutic option for intractable neurological and psychiatric disorders, including Parkinson's disease and major depression.— Viviana Gradinaru et al., Science, 17 Apr. 2009DBS involves the insertion of electrodes deep in the brain to hit a precise neuroanatomical target that is believed to be central to the disease being treated.— Alison Abbott, Nature, 7 July 2005