Deep brain stimulation, or simply deep brain stimulation, is a medical technique whereby electrode(s) are surgically inserted into the brain of patients with, for example, Parkinson's disease, dystonia, or essential tremor. In such disorders, the cause is scientifically traced to a specific area of the brain where activity is not at a desired level. A small electrode can stimulate that area in a controlled way. In an operation, the electrode is inserted through a small hole in the skull. The electrode is connected to a neurostimulator, including batteries, which is also placed inside the body - behind the collarbone. The connecting wire runs under the skin, behind the ear, through the neck to the neurostimulator.
Author: Tom de Graaf (translated by Thomas von Rein )