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The Fregoli delusion, or the delusion of doubles, is a rare disorder in which a person holds a delusional 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 delusional person believing themselves persecuted by the person they believe is in disguise. A person with the Fregoli delusion can also inaccurately replicate 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.〔Tibbetts, Paul. " Symbolic Interaction Theory and the Cognitively Disabled: A neglected Dimension." Jstor. Winter 2004. Web. 28 September 2011 (Symbolic Interaction Theory and the Cognitively Disabled: A Neglected Dimension )〕 The Fregoli delusion is classed both as a monothematic delusion, since it only encompasses one delusional topic, and as a delusional misidentification syndrome, a class of delusional beliefs that involves misidentifying people, places, or objects. Like Capgras delusion, psychiatrists believe it is related to a breakdown in normal face perception. ==Signs and symptoms== Signs and symptoms of Fregoli's: * delusions * visual memory deficit * deficit in self-monitoring * deficit in self-awareness * hallucinations * deficit in executive functions * deficit in cognitive flexibility * history of seizure activity * epileptogenic activity 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fregoli delusion」の詳細全文を読む スポンサード リンク
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