Parkinson) with excellent success. The scope of indications for deep brain stimulation is increasing and now includes a variety of movement disorders, pain syndromes, epilepsy and even psychiatric diseases (e.g. OCD)” [Marko]. Currently, deep brain stimulators are the most used implants in patients suffering from various diseases and in the future they will be able to cover a wider range of diseases and disorders. Deep brain stimulation involves implanting a pacemaker in the brain. The pacemaker, also called a pulse generator, can then stimulate parts of the brain that relieve symptoms of the disease. Deep brain stimulators use the electrode in the pacemaker to send electrical impulses to parts of the brain. These impulses stimulate brain cells, which reduce the symptoms of diseases. Stimulating the brain works and has worked for thousands of patients, however, scientists aren't entirely sure why this technology works for the brain. The performance and understanding of deep brain stimulators will improve as more data is collected through research and existing patient records.