nihilistic delusion

Delusions of guilt, delusions of poverty, and nihilistic delusions (belief that one has no mind or is already dead) are typical of depressive psychoses.

Other common delusions in psychotic disorders are persecutory delusions, referential delusions, erotomanic delusions, and nihilistic delusions.

They can be of various themes, such a persecutory delusions, referential delusions, grandiose delusions, erotomanic delusions, nihilistic delusions and somatic delusions.

It is classically defined as "depression of gradual onset occurring during the involutional years (40-55 in women and 50-65 in men), with symptoms of marked anxiety, agitation, restlessness, somatic concerns, hypochondriasis, occasional somatic or nihilistic delusions, insomnia, anorexia, and weight loss."