<prompt> Folie-a-deux means ?Delusion of persecutionSharing of delusionDelusion of doubleNone  <response>: Ans. is b i.e., Sharing of delusion It is also known as shared psychotic disorder or symbiotic psychosis. It is characterized by sharing of delusions between two person Folie a deux or rarely between more individuals Folie a trois, Folie a quatre, Folie a famine. There is a dominant active person who induces delusions into the other passive receptor or dependent person -4 Dependent person accepts the delusion of dominant person. On separation of two, dependent person may give up his delusions, however the active dominant person often requires treatment 