Understanding Capgras Syndrome
When you believe someone close to you has been replaced by an identical impostor.
What Is Capgras Syndrome?
Capgras syndrome (also called Capgras delusion) is the belief that a familiar person — usually a spouse, family member, or close friend — has been replaced by an identical-looking impostor.
It is a rare condition that can be deeply distressing for both the person experiencing it and their loved ones.
Capgras syndrome is not a character flaw or choice — it is a neurological and psychiatric condition.
It is thought to involve a disconnection between facial recognition and emotional familiarity in the brain.
How It Presents
Insisting that a loved one is not who they claim to be.
Anxiety, fear, or hostility toward the 'impostor'.
Seeking the 'real' person or trying to unmask the supposed replacement.
Distress and confusion about why no one else can see the deception.
Sometimes extending to pets, objects, or places feeling replaced.
Causes
Often associated with dementia, particularly Lewy body dementia.
Can occur with traumatic brain injuries.
Sometimes linked to schizophrenia or other psychotic disorders.
Neurologically, it may involve damage to connections between visual recognition and emotional response areas.
In rare cases, it can occur without other obvious neurological conditions.
Support and Treatment
Treatment focuses on the underlying condition when possible.
Antipsychotic medication may help reduce delusional beliefs.
Creating a calm, reassuring environment is essential.
Avoid arguing about whether the delusion is real — this increases distress.
Carers need significant support and education about the condition.
Family therapy can help loved ones cope with the emotional impact.