A person falsely perceives that his close friend has been replaced by an exact double. This phenomenon is referred to as:: (A) Cotard syndrome, (B) Fregoli syndrome, (C) Capgras syndrome, (D) Delusional perception
Answer is C. Capgras syndrome: false belief that a familiar person or place has been replaced with an exact duplicate. Fregoli delusion, or the delusion of doubles, is a false belief that different people are in fact a single person who changes appearance. Cotard syndrome is a false belief that they are already dead, are putrefying, or have lost their blood or internal organs.