plural of optical delusion

plural of Capgras delusion

(psychiatry) A delusion in which the sufferer believes that a friend, spouse or family member has been replaced by an identical-looking impostor.

The act of deluding oneself, or the state of being so deluded.

(usually in the plural) The false belief that one is important or powerful, accompanying certain mental disorders. / (usually in the plural) Conceitedness or overconfidence.

Cotard's syndrome.

The often paranoid delusion that different people are in fact a single person who changes appearance or is in disguise. It may be related to a brain lesion.

(historical) The psychological/psychiatric delusion that one is made of glass and will shatter if one sits on a hard surface or is struck.

(usually in the plural) The false belief that one is adequate; the belief that one is doing a competent job when one is actually incompetent.

Fregoli delusion