This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Schizophrenia Spectrum and Other Psychotic Disorders, Subject name: Psychiatry
[{'content': 'Delusional belief about subjective double is called: \nSelect and explain. \nA. Doppelganger, B. Autoscopy, C. Delusion of misidentification, D. Depersonalization', 'role': 'user'}, {'content': "Answer: A \nExplanation: Doppelganger is the delusional belief that there is a subjective double. Delusion of misidentification are of two types - positive and negative. Negative misidentification is called as Capgras syndrome. Positive misidentification is called as Fregoli's syndrome. Autoscopy is looking oneself externally and knowing it as themselves.", 'role': 'assistant'}]