define hallucination - Search
  1. Content medically reviewed by
    Dr. Abhimanyu Chandakverified specialist
    MD, Psychiatry
    View full profile onLinkedIn logoLinkedIn

    An experience in which you see, hear, feel, or smell something that does not exist.

    Common Causes

    Hallucination is not always related to an underlying condition. It may be caused by:

    • Excessive consumption of alcohol
    • Drugs or substance abuse
    • Withdrawal of alcohol, opioids, other drugs
    • Prolonged sleep deprivation
    • Extreme starvation
    • Medication side effects
    • Stress
    Related Conditions
    Sometimes hallucination may signify an underlying health condition. These conditions include:

    For informational purposes only. Consult a medical professional for advice.

    Reviewed by a panel of doctors. Source: Focus Medica. Learn more

    People also ask

    What does hallucination mean?
    The meaning of HALLUCINATION is a sensory perception (such as a visual image or a sound) that occurs in the absence of an actual external stimulus and usually arises from neurological disturbance (such as that associated with delirium tremens, schizophrenia, Parkinson's disease, or narcolepsy) or in response to drugs (such as LSD or phencyclidine).
    www.merriam-webster.com/dictionary/hallucination
    What are the variations of hallucinations?
    Hallucination is a perception in the absence of an external stimulus that has the qualities of a real perception. Variations of hallucinations include visual hallucinations, auditory hallucinations, olfactory hallucinations, tactile hallucinations, gustatory hallucinations, general somatic hallucinations, etc.
    microsoftstart.msn.com/en-us/health/ask-professionals/i…
    Where did the word hallucination come from?
    The word "hallucination" itself was introduced into the English language by the 17th-century physician Sir Thomas Browne in 1646 from the derivation of the Latin word alucinari meaning to wander in the mind. For Browne, hallucination means a sort of vision that is "depraved and receive [s] its objects erroneously".
    en.wikipedia.org/wiki/Hallucination
    What is a hallucination in Computer Science?
    the sensation caused by a hallucinatory condition, or the object or scene visualized. a false notion, belief, or impression; illusion; delusion. Computers, Digital Technology. (in the field of machine learning) false information generated by a machine learning program contrary to the intent of the user and presented as if it were true and factual.
    www.dictionary.com/browse/hallucination
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  2. Dictionary

    hal·lu·ci·na·tion
    [həˌlo͞osəˈnāSHən]
    noun
    hallucination (noun) · hallucinations (plural noun)
    1. an experience involving the apparent perception of something not present:
      "he continued to suffer from horrific hallucinations"
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  4. WEBSep 10, 2022 · Hallucinations involve hearing, seeing, feeling, smelling, or even tasting things that are not real. Learn more about hallucinations, including causes and treatment.

  5. Hallucination, the experience of perceiving objects or events that do not have an external source, such as hearing one’s name called by a voice that no one else seems to hear. A hallucination is distinguished from an illusion,...see more

    Insight :Hallucinations are perceptions without external stimuli, often vivid and substantial

    Insight :They can affect all five of the senses

    Insight :Auditory hallucinations are the most common type

    Insight :Hallucinations are a symptom of psychosis-related disorders, but can also occur for other reasons

    Quiz :What is a hallucination?

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  6. WEBA hallucination involves perceiving sensory stimuli that aren't really present. For example, someone might hear voices that aren’t there, or see patterns that others don’t see.

  7. WEBAug 1, 2023 · A hallucination is the experience of sensing something that isn't really present in the environment, but is instead created by the mind. Learn about the different types of hallucinations, the possible …

  8. Hallucination | Definition, Examples, & Facts | Britannica

    WEBApr 27, 2024 · Hallucination is the experience of perceiving objects or events that do not have an external source, such as hearing a voice that no one else seems to hear. Learn about the history, causes, types, and …

  9. Hallucinations: Symptoms, Types, Causes, and Treatment

  10. Hallucinations: Causes, Types, Diagnosis, Treatment - WebMD

  11. Hallucinations: Types, causes, and symptoms - Medical News …

  12. hallucination noun - Definition, pictures, pronunciation and usage ...

  13. Hallucinations: Types and Causes - Verywell Mind

  14. Hallucinations | Johns Hopkins Psychiatry Guide

  15. What Are the Causes of Hallucinations? - Verywell Health

  16. Hallucination - Definition, Meaning & Synonyms | Vocabulary.com

  17. Hallucinate Definition & Meaning - Merriam-Webster

  18. HALLUCINATE | English meaning - Cambridge Dictionary

  19. Hallucinations vs. Delusions: What’s the Difference? - Healthline

  20. Unveiling Hallucination in Text, Image, Video, and Audio …