The<unk>  is a rare disorder in which a person holds a<unk> al belief that different people are in fact a single person who changes appearance or is in disguise. The syndrome may be related to a brain lesion and is often of a paranoid nature, with the<unk> al person believing themselves persecuted by the person they believe is in disguise. A person with the<unk>  can also inaccurately recall places, objects, and events. This disorder can be explained by "associative nodes". The associative nodes serve as a biological link of information about other people with a particular familiar face (to the patient). This means that for any face that is similar to a recognizable face to the patient, the patient will recall that face as the person they know. The<unk>  is classed both as a monothematic<unk> , since it only encompasses one<unk> al topic, and as a<unk> al misidentification syndrome (DMS), a class of<unk> al beliefs that involve misidentifying people, places, or objects. Like Capgras<unk> , psychiatrists believe it is related to a breakdown in normal face perception.
Fregoli delusion
Cotard delusion
Capgras delusion
Visual hallucinations in psychosis
Gemütlose psychopathy
Monothematic delusion
Unitary psychosis
Peduncular hallucinosis