abstract:The Capgras delusion (or Capgras syndrome) (pron: kăh′grah IPA:/ka·'grɑ:/)MediLexicon is a disorder in which a person holds a delusion that a friend, spouse, parent, or other close family member has been replaced by an identical-looking impostor. The Capgras delusion is classified as a delusional misidentification syndrome, a class of delusional beliefs that involves the misidentification of people, places, or objects (usually not in conjunction).