This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptoms & Signs , Subject name: Psychiatry
[{'content': 'Capgras syndrome is - \nSelect and explain. \nA. Sharing of delusion, B. Delusion of double, C. Erotomania, D. Hypochondriacal delusions', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Delusion of double o Capgras syndrome is delusion of double.The delusional misidentification syndrome LDSM)o DSM is characterized by misidentification delusions of other or self. Four main syndromes are differentiated : -Capgras syndrome (Delusion of double) Patient falsely sees a familiar person as a complete stranger who is imposting on him as a familiar person.Fregoli syndrome (illusion de fregoli) : - The patient falsely identifies stranger as familiar person.Syndrome of subjective double : - The patients own self is perceived as being replaced by a double.Syndrome of intermetamorphosis : - A false belief that a person can transform into another person.o These syndrome most commonly appear in schizophrenia. Other causes axe Alzheimer syndrome, head injuries, and delusional disorders,", 'role': 'assistant'}]