Fregoli Delusion

The Fregoli delusion 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.


Cluster Number:
Wiki Number: W084
Diagnosis: Fregoli Delusion
US Patients:
World Patients:
Sex Ratio:
Age Onset:
Brain Area: frontal & left temporo-parietal areas ;learning & remembering spatial aspects, anterior fusiform-gyrus-visual processing
Symptoms: Belief that different people are actually one person who changes appearance or is in disguise
Progression: L-Dopa, used to treat Parkinson’s, is a precursor to dopamine. If there is too much for the body, delusions may occur.
Causes: may be due to a brain lesion, where the person imagined is persecuting them; aided by poor face perception
Medications: antipsychotics, anticonvulsants, antidepressants


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