folie a deux(redirected from Folie à quatre)
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folie à deux mental disorder affecting two persons who share the same delusions; formally classified as shared psychotic disorder.
folie du pourquoi [doo-poor-kwah´] psychopathologic constant questioning.
folie gémellaire [zha″mĕ-lār´] psychosis occurring simultaneously in twins.
fo·lie à deux(ah dyeuh),
a mental disorder in which a delusion develops in a person in a relationship with another person with an established delusion.
Synonym(s): shared psychotic disorder
folie à deux(fô-lē′ ä dœ′, fŏl′ē)
A condition in which two individuals who share a close relationship experience the same delusions or hallucinations as the result of a mental disorder such as schizophrenia affecting one or both of them. Also called shared psychotic disorder.