The deliusion which involves replacement of a familiar person by someone else is

The deliusion which involves
replacement of a familiar person by
someone else is ?
a) Capgras syndrome
b) Cotard syndrome
c) Othello syndrome
d) None
Correct Answer - A
Ans. is ‘a’ i.e., Capgras syndrome
DSM is characterized by misidentification delusions of other or self.
Four main syndromes are differentiated : ?

  1. Capgras syndrome (Delusion of double) : - Patient falsely sees a
    familiar person as a complete stranger who is importing on him as a
    familiar person.
  2. Fregoli syndrome (illusion de fregoli) : - The patient falsely identifies
    stranger as familiar person.
  3. Syndrome of subjective double : - The patients own self is perceived
    as being replaced by a double.
  4. Syndrome of intermetamorphosis : - A false belief that a person can
    transform into another person.
    These syndrome most commonly appear in schizophrenia. Other
    causes are Alzheimer syndrome, head injuries, and delusional
    disorders.