what is deep-brain stimulation is a form of
When the device is switched on, the electrodes deliver high frequency stimulation to the targeted area. This stimulation changes some of the electrical signals in the brain that cause the symptoms of Parkinsonâs. Deep brain stimulation is a ânon-destructiveâ type of surgery. This means that it doesnât destroy any part of the brain. Deep brain stimulation is also reversible in many cases, if no damage occurs during surgery. So, if it isnât successful, the system can be switched off, or removed if necessary. This is different to lesioning surgery, which does cause permanent damage to cells in a target area of the brain.