This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurotic Disorders, Subject name: Psychiatry
Folie-a-deux means - 
Select and explain. 
A. Delusion of persecution, B. Sharing of delusion, C. Delusion of double, D. None
B: Sharing of delusion
Answer: B: Sharing of delusion 
Explanation: Ans. is 'b' i.e., Sharing of delusionInduced delusional disordero It is also known as shared psychotic disorder or symbiotic psychosis.o It is characterized by sharing of delusions between two person (Folie a deux) or rarely between more individuals (Folie a troisy Folie a quatre, Folie a famille).o There is a dominant (active) person who induces delusions into the other (passive receptor or dependent person) Dependent person accepts the delusion of dominant person.o On separation of two, dependent person may give up his delusions, however the active (dominant) person often requires treatment.