Delusions - Definition of Delusions

Definition:

A delusion is a false belief that is firmly held even when direct evidence that the belief is false is presented to a person.

A delusion is much more than just a strong or unreasonable belief; it is a false belief that is held so firmly that it reflects a person being out of touch with reality.

Examples of common delusions include:

• Grandiose – delusions about inflated worth, power, or status (e.g., someone believing that he is actually a religious figure)
• Persecutory – delusions in which the central theme is that the person is being watched, attacked, or harassed (e.g., someone believing that he is being followed by government agents)
• Thought broadcasting – delusions that a person’s thoughts are somehow being broadcast so that other people can see or hear them

Delusions are psychotic symptoms that may be associated with schizophrenia or other psychotic disorders, but they can also be experienced by people with major depressive disorder, bipolar disorder, or occasionally by people with borderline personality disorder during periods of stress.