Grandiose delusions

Grandiose delusions
Grandiose delusions
Other names	Expansive delusions, delusions of grandeur
	People with grandiose delusions wrongly hold themselves at an extraordinarily high status in their mind.
Specialty	Psychiatry

Grandiose delusions (GDs), also known as delusions of grandeur or expansive delusions,^[1] are a subtype of delusion characterized by extraordinary belief that one is famous, omnipotent, wealthy, or otherwise very powerful. Grandiose delusions often have a religious, science fictional, or supernatural theme. Examples include the extraordinary belief that one is a deity or celebrity, or that one possesses extraordinary talents, accomplishments, or superpowers.^[2]

While non-delusional grandiose beliefs are somewhat common—occurring in at least 10% of the general population^[3]^[vague]—and often^[vague] positively influence a person's self-esteem, in some cases they may cause a person distress, in which case such beliefs may be clinically evaluated and diagnosed as a psychiatric disorder.

When studied as a psychiatric disorder in clinical settings, grandiose delusions have been found to commonly occur with other disorders, including in two-thirds of patients in a manic state of bipolar disorder, half of those with schizophrenia, patients^[vague] with the grandiose subtype of delusional disorder, frequently^[vague] as a comorbid condition in narcissistic personality disorder, and a substantial portion^[vague] of those with substance abuse disorders.^[3]^[4]

The term grandiose delusion overlaps with, but is distinct from, grandiosity. Grandiosity is an attitude of extraordinary self-regard (feelings of superiority, uniqueness, importance or invulnerability), while grandiose delusion concerns specific extraordinary factual beliefs about one's fame, wealth, powers, or religious and historical relevance.

^ Ray Corsini (2016). The Dictionary of Psychology. Taylor & Francis. p. 985. ISBN 978-1-317-70570-3.
^ Cite error: The named reference :0 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference Knowles was invoked but never defined (see the help page).
^ Diagnostic and Statistical Manual of Mental Disorders Fourth edition Text Revision (DSM-IV-TR) American Psychiatric Association (2000)

[Corsini2016-1] Ray Corsini (2016). The Dictionary of Psychology. Taylor & Francis. p. 985. ISBN 978-1-317-70570-3.

[:0-2] Cite error: The named reference :0 was invoked but never defined (see the help page).

[Knowles-3] Cite error: The named reference Knowles was invoked but never defined (see the help page).

[DSM-IV-TR-4] Diagnostic and Statistical Manual of Mental Disorders Fourth edition Text Revision (DSM-IV-TR) American Psychiatric Association (2000)

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