This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Treatment in psychiatry, Subject name: Psychiatry
Psychosurgery is used in 
Select and explain. 
A. Phobia, B. Generalized anxiety, C. OCD, D. Depression
C: OCD
Answer: C: OCD 
Explanation: Psychosurgery can be used in the treatment of OCD that has become intractable and is not responding to other methods of treatment. The best responders are usually those who have significantly associated depression, although pure obsessives also respond. The main benefit is the marked reduction in associated distress and severe anxiety. (Ref: a sho textbook of psychiatry, Niraj Ahuja, 7th edition, pg no.98)