Capgras Delusion

Capgras syndrome, also known as Capgras delusion, is the irrational belief that a familiar person or place has been replaced with an exact duplicate.


Cluster Number:
Wiki Number: W034
Diagnosis: Capgras Delusion
US Patients:
World Patients:
Sex Ratio: M2; F3
Age Onset:
Brain Area: disconnection between temporal cortex where faces are usually recognized and the limbic system which is involved with emotions
Symptoms: Believes that a parent, spouse or friend has been replaced by an identical imposter; can be acute, transient or chronic
Progression: poor facial recognition of others and inability to remember the emotions associated with a familiar person
Causes: paranoid schizophrenia, brain injury, dementia with Lewy bodies and other dementia
Therapies: With the correct diagnosis, it is shown to be a neurological problem, not one more serious. Understanding is only the treatment.


The world-wide medical research
reports chosen for each diagnosis 

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PubMed article’s summary-abstract.

    by Yvonne Flores-Medina on September 27, 2021

    This case study describes the coexistence of Capgras and Fregoli-type delusions in a 51-year-old woman. The patient reported that her children were kidnapped and replaced with doubles. She claims that several customers at her shop are her real children. Neuropsychological assessment revealed severe defects in social cognition and an increased number of perseveration responses in the self-directed signaling task. We propose that the latter finding is a measure of the familiarity phenomenon and...

  • Epileptic Capgras-Like Delusions in a Patient with Right Frontal Meningioma: Case Report
    by Eleonora Colombo on June 28, 2021

    Capgras syndrome is a condition characterized by the belief that a relative has been replaced by an almost identical imposter. The disorder has been reported in several neurological diseases. We describe the uncommon case of a transient Capgras syndrome manifesting as focal temporal seizures in a woman with a right frontal meningioma. Our patient represents an exceptional case of Capgras syndrome for several reasons, namely, the association with meningioma, very rarely reported before, the...

  • Xylological Variant of Reverse Fregoli Syndrome, Delusions of Being a Tree
    by Harsimran Singh Bakhshi on June 15, 2021

    INTRODUCTION: The delusion of being a living animate non-animal object has not heretofore been reported.

  • Evolution of Capgras syndrome in neurodegenerative disease: the multiplication phenomenon
    by Aline von Siebenthal on April 15, 2021

    Capgras syndrome (CS) is a delusional misidentification syndrome that is encountered in various pathologies. Here, we report the case of an 83-year-old woman affected by dementia with Lewy bodies who presented a CS during the disease. The neuropsychological assessment showed executive and face processing deficits. In this case, CS was characterized, in the beginning, by the duplication of a relative and then by its multiplication. To our knowledge, the description of the evolution of a CS in the...