This is called the Capgras delusion, and that is a patient, who's otherwise completely normal, has had a head injury, comes out of coma, otherwise completely normal, he looks at his mother and says, "This looks exactly like my mother, this woman, but she's an impostor. She's some other woman pretending to be my mother." Now, why does this happen?
E vorba de iluzia Capgras: un pacient complet normal, suferă o traumă la cap, iese din comă, normal în toate celelalte aspecte, se uită la maică-sa şi zice: „Arată exact ca mama, dar asta-i o impostoare, e altă femeie care pretinde că e mama.” De ce se întâmplă asta?