Delusions

Delusions Symptoms & Signs

Medical Author:

A delusion is a false personal belief that is not subject to reason or contradictory evidence and is not explained by a person's usual cultural and religious concepts (so that, for example, it is not an article of faith). A delusion may be firmly maintained in the face of incontrovertible evidence that it is false. Delusions are common in psychotic disorders such as schizophrenia. Delusions can also be a feature of brain damage or disorders. Delusions can be accompanied by other psychiatric symptoms or by physical symptoms when these occur related to a medical condition. Delusional disorder is a specific psychiatric condition that was formerly known as paranoid disorder. Examples of delusions include the sufferer believing that one has an unusual power or talent, believing that someone else (possibly a prominent figure or famous person) is in love with them, believing that one is being persecuted, or believing that one has a nonexistent medical problem.

Medically Reviewed by a Doctor on 7/2/2014

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REFERENCE:

Longo, D.L., et al. Harrison's Principles of Internal Medicine, 18th ed. New York: McGraw-Hill Professional, 2011.

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Other Causes of Delusions
  • Brain Trauma
  • Delusional Disorder
  • Drug-Induced Psychosis
  • Toxins
Examples of Medications for Delusions


Symptoms & Signs A-Z List