<prompt> Capgras syndrome is?Delusion of infidelityDelusion of loveDelusion of doubleDelusion of grandiose  <response>: Ans is c i.e. Delusion of double Delusion of misidentificationA. Capgras syndrome Delusion of double: - Belief that a familiar person has been replaced by an exact double i.e. an impostor.B. Fregoli syndrome: - Belief that a complete stranger is actually a familiar person already known to one.Also remember Othello syndrome - delusion of jealousy infidelity Declerambaults syndrome - delusion of love Cotards syndrome - Nihilistic delusions Ekbom syndrome - Delusion of infestations. 