Capgras delusion

Capgras delusion
Synonyms	Capgras syndrome, Capgras' syndrome, Capgras' delusion
Pronounce	N/A
Specialty	N/A
Symptoms	Belief that a familiar person has been replaced by an impostor
Complications	Social isolation, anxiety, depression
Onset	Can occur at any age, often associated with neurological disorders or psychiatric disorders
Duration	Variable, can be chronic
Types	N/A
Causes	Often associated with schizophrenia, dementia, brain injury, or other neurological disorders
Risks	Schizophrenia, dementia, brain injury, neurological disorders
Diagnosis	Clinical evaluation, psychiatric assessment
Differential diagnosis	Fregoli delusion, Cotard delusion, Reduplicative paramnesia
Prevention	N/A
Treatment	Antipsychotics, psychotherapy, cognitive behavioral therapy
Medication	N/A
Prognosis	Varies, can improve with treatment
Frequency	Rare
Deaths	N/A

Capgras delusion is a psychiatric disorder in which a person holds a delusion that a friend, spouse, parent, or other close family member (or pet) has been replaced by an identical-looking impostor.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. It can occur in acute, transient, or chronic forms.

Causes

While the exact cause of Capgras delusion is unknown, it is often associated with conditions such as schizophrenia, dementia, and brain injury. It has also been linked to diabetes, hypothyroidism, and migraines.

Symptoms

The primary symptom of Capgras delusion is the belief that a familiar person has been replaced by an impostor. This belief is often accompanied by feelings of fear and paranoia. Other symptoms may include anxiety, depression, and hallucinations.

Diagnosis

Diagnosis of Capgras delusion is based on the patient's symptoms and history. A psychiatrist or psychologist will typically conduct a thorough mental health evaluation. Other tests, such as brain imaging studies, may be used to rule out other conditions.

Treatment

Treatment for Capgras delusion typically involves psychotherapy and medication. Cognitive behavioral therapy (CBT) can help the person to manage their symptoms and improve their quality of life. Medications such as antipsychotics, mood stabilizers, and antidepressants may also be used.

Prognosis

The prognosis for Capgras delusion varies depending on the underlying cause. In some cases, the delusion may resolve on its own or with treatment. In other cases, it may persist for years or even a lifetime.

See also

• Cotard delusion
• Fregoli delusion
• Reduplicative paramnesia