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Shared delusions of doubles.
  1. G N Christodoulou,
  2. M M Margariti,
  3. D E Malliaras,
  4. S Alevizou
  1. Athens University Department of Psychiatry, Eginition Hospital, Greece.

    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.

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