Deep brain stimulation is effective in treating:

A) depression.
B) obsessive-compulsive disorder.
C) Parkinson disease.
D) All of the answers are correct.

Deep Brain Stimulation

A neurosurgical procedure that implants a device to send electrical impulses to targeted areas in the brain, used to treat some neurodegenerative disorders.

Obsessive-Compulsive Disorder

A mental disorder characterized by unwanted repetitive thoughts (obsessions) and actions (compulsions).

Depression

A common and serious mental health condition characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.