This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurotic, Stress Related and Somatoform Disorders, Subject name: Psychiatry
A feeling of detachment from own body and a sense of unreality is called as: 
Select and explain. 
A. Depersonalisation, B. Derealisation, C. Dissociation, D. Trance
A: Depersonalisation
Answer: A: Depersonalisation 
Explanation: In depersonalization patient has a feeling of unreality of self. He feels "as if" he has changed. The patient frequently repo that they feel as if they have detached from their body and are watching themselves like in a movie.