A wide range of activities take place within the functional neurosurgery specialty, including the treatment of disorders such as epilepsy and Parkinson’s disease with stereotactic techniques which allow precise targeting of both abnormal and normal brain areas. A variety of hardware including MRI-compatible stereotactic frames and frameless stereotactic neuronavigation equipment is utilized. Stereotactic radiosurgery using the Gamma Knife® may also be performed within this specialty area (see the Radiosurgery/Gamma Knife® section for additional details).