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  1. DELUSION Definition & Meaning - Merriam-Webster

    delusion, illusion, hallucination, mirage mean something that is believed to be true or real but that is actually false or unreal. delusion implies an inability to distinguish between what is real and …

  2. Delusion - Wikipedia

    Robert Trivers writes that delusion is a discrepancy in relation to objective reality, but with a firm conviction in reality of delusional ideas, which is manifested in the "affective basis of delusion".

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

    A delusion is an unshakable belief in something that’s untrue. The belief isn’t a part of the person’s culture or subculture, and almost everyone else knows this belief to be false.

  4. Delusions: Types, Examples, Causes, Signs - Verywell Health

    Oct 23, 2025 · Delusions are false beliefs that people strongly hold even when there's proof they're wrong. There are different types of delusions, like bizarre ones that are impossible and …

  5. Delusions: Definition, Symptoms, Traits, Causes, Treatment

    Oct 16, 2025 · Delusions are characterized by an unshakable belief in things that are not true, and in many cases, people continue to believe in them despite evidence to the contrary. It's also …

  6. Types of Delusions & Common Delusional Themes - WebMD

    May 7, 2024 · Delusions are beliefs that aren't based on reality, culture, religion, or social identity. The people affected by them can’t be convinced by facts or reason that their delusional belief …

  7. What are Delusions in Psychology?

    Apr 22, 2024 · Delusions are beliefs that persist despite evidence to the contrary. They are often associated with mental health conditions such as schizophrenia, bipolar disorder, or severe …

  8. DELUSION | English meaning - Cambridge Dictionary

    DELUSION definition: 1. belief in something that is not true: 2. belief in something that is not true: 3. something a…. Learn more.

  9. Delusion | Definition & Facts | Britannica

    Delusion, in psychology, a rigid system of beliefs with which a person is preoccupied and to which the person firmly holds, despite the logical absurdity of the beliefs and a lack of supporting …

  10. Types of Delusions - Verywell Health

    Oct 22, 2025 · Having a delusion is different than having self-deception—incorrect feelings, ideas, or situations that a person might believe due to a personal bias. Delusions interfere with a …