title: Shared delusions of doubles.
abstract: This is the first report of two partners in a folie à deux situation manifesting identical Capgras delusions. It is postulated that the Capgras syndrome developed as a result of interaction between a dominant patient with primarily paranoid psychopathology and a submissive one with primarily organic dysfunction. The submissive "neuro-organic" partner experienced a non-delusional misidentification that acquired a delusional component and developed into the Capgras syndrome as a result of elaboration by the dominant paranoid partner, who subsequently "imposed" the Capgras delusion on the submissive partner. The submissive patient, and, to a lesser extent the dominant patient, had evidence of organic cerebral dysfunction.
authors.affiliation: Athens University Department of Psychiatry, Eginition Hospital, Greece.
authors.forename: G N
authors.initials: GN
authors.lastname: Christodoulou
authors.forename: M M
authors.initials: MM
authors.lastname: Margariti
authors.forename: D E
authors.initials: DE
authors.lastname: Malliaras
authors.forename: S
authors.initials: S
authors.lastname: Alevizou
mesh_terms: D000328:Adult; D002194:Capgras Syndrome / Q000503:physiopathology / Q000523:psychology*; D003702:Delusions / Q000503:physiopathology / Q000523:psychology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D012753:Shared Paranoid Disorder / Q000503:physiopathology / Q000523:psychology*