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Related Experiment Videos

Cocaine hallucinations.

R K Siegel

    The American Journal of Psychiatry
    |March 1, 1978
    PubMed
    Summary

    Cocaine use can cause hallucinations across various senses. A study of users found phenomena like "snow lights" may precede "cocaine bugs," suggesting CNS excitation as a common cause.

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    Area of Science:

    • Neuroscience
    • Psychiatry
    • Pharmacology

    Background:

    • Cocaine is a stimulant with known psychoactive effects.
    • Hallucinations are a reported side effect of cocaine use, though not fully characterized.
    • Understanding these phenomena is crucial for clinical and research purposes.

    Purpose of the Study:

    • To review existing literature on cocaine-induced hallucinations.
    • To examine the phenomenology of hallucinations in recreational cocaine users.
    • To explore potential mechanisms and similarities with other hallucinatory phenomena.

    Main Methods:

    • Literature review on acute and chronic cocaine administration.
    • Phenomenological examination of hallucinations in 85 recreational cocaine users.
    • Analysis of reported sensory modalities and symptom progression.

    Main Results:

    • Fifteen out of 85 users reported hallucinations across visual, tactile, olfactory, auditory, and gustatory senses.
    • "Snow lights" phenomenon described as a precursor to "cocaine bugs."
    • Similarities noted between cocaine hallucinations, entoptic phenomena, and migraine hallucinations.

    Conclusions:

    • Cocaine hallucinations exhibit diverse sensory involvement.
    • "Snow lights" and "cocaine bugs" represent a potential symptom progression.
    • Central nervous system excitation and arousal may underlie cocaine hallucinations and other similar phenomena.

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