Psychosurgery:Psychosurgery involves surgically altering or removing parts of the brain believed to be responsible for severe mental disorders when other treatments have failed.
Radiotherapy: Radiotherapy uses high-energy radiation beams targeted at specific areas of the brain to destroy abnormal tissue associated with tumors or certain neurological conditions.
Hemispherectomy: Hemispherectomy is an extreme surgical procedure where one entire hemisphere (half) of the brain is removed to treat severe epilepsy or other conditions that do not respond to medication.