Capgras syndrome is characterized by a delusional belief that a person has been replaced by an imposter. It has been described in psychiatric and neurological (neurodegenerative and nonneurodegenerative) diseases.
researchers believe that Capgras syndrome is caused by a problem within the brain, like atrophy, lesions, or cerebral dysfunction. Some believe that it's a combination of physical and cognitive changes, in which feelings of disconnectedness contribute to the problem
Read this:
https://www.webmd.com/mental-health/impostor-sy...
Kind of like that 70's movie invasions of the body snatchers.
Google said it's a delusional belief that a person has been replaced by an imposter.
Thanks, Trevor, for your information on Capgras Syndrome. It was very informative.
Jane