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  1. Delusional disorder - Wikipedia

    Delusional disorder is a mental disorder in which a person has delusions, but with no accompanying prominent hallucinations, thought disorder, mood disorder, or significant …

  2. Delusional Disorder: Causes, Symptoms, Types & Treatment

    May 22, 2022 · A delusional disorder is a type of psychotic disorder. Its main symptom is the presence of one or more delusions, which are unshakable beliefs in something untrue.

  3. Delusional Disorder - Harvard Health

    Jan 27, 2025 · Delusional disorder is characterized as having one or more false beliefs based on an incorrect interpretation of reality lasting at least one month. Other than the delusions, the …

  4. Delusional Disorder - Mental Health Disorders - Merck Manual ...

    Delusional disorder is characterized by 1 or more firmly held false beliefs that persist for at least 1 month, without other symptoms of psychosis.

  5. Delusional Disorder – Understanding Psychological Disorders

    The diagnosis of a delusional disorder occurs when a person has one or more delusional thoughts for one month or more, that has no explanation by another physiological, substance-induced, …

  6. Delusional disorder Guide: Causes, Symptoms and Treatment …

    Jan 27, 2025 · Delusional disorder - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.

  7. Delusional Disorder: Understanding Its Impact on Cognitive ...

    Mar 9, 2025 · Explore delusional disorder and its effects on cognitive functioning, including symptoms, causes, and treatment options for better understanding and management.

  8. Delusional Disorder: Comprehensive Overview - Psychology Fanatic

    Jul 2, 2025 · Delusional disorder is primarily characterized by delusions, which are false beliefs that remain fixed in a person’s mind despite their illogical bases and lack of evidence.

  9. Delusional Disorder: Symptoms, Causes, and Treatment

    Dec 18, 2025 · This article explores the types, symptoms, causes, diagnosis, and treatment of delusional disorder.

  10. Delusional Disorder: Types, Symptoms, and Treatment - WebMD

    Jan 3, 2024 · Delusional (paranoid) disorder is a serious mental illness where a person cannot tell what is real from what is imaginary. Know causes, symptoms, and treatment.