Cortical stimulation is an emerging treatment alternative for various neurological disorders. Unlike deep brain stimulation, cortical stimulation utilizes electrodes that are placed on the exterior surface of the brain. This procedure is currently being studied as a treatment alternative for patients with epilepsy, movement disorders, neuropathic pain disorders, and psychotic disorders such as depression. Cortical stimulation can be utilized for patients of stroke or traumatic brain injury.
For a number of years, motor cortex stimulation has been used for several conditions. Cortical stimulation for other indications is, however, a relatively new technique which is still being investigated.