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Related Experiment Videos

Marijuana effects on simulated flying ability.

D S Janowsky, M P Meacham, J D Blaine

    The American Journal of Psychiatry
    |April 1, 1976
    PubMed
    Summary
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    Marijuana intoxication significantly impaired flight simulator performance in 10 certified pilots. Performance deficits persisted for up to two hours, indicating marijuana

    Area of Science:

    • Aviation Psychology
    • Pharmacology
    • Human Factors

    Background:

    • Pilot performance is critical for aviation safety.
    • Understanding the impact of psychoactive substances on pilots is essential.

    Purpose of the Study:

    • To investigate the effects of marijuana intoxication on certified airplane pilots' flight simulator performance.
    • To assess the duration of these effects.

    Main Methods:

    • Randomized, double-blind, placebo-controlled crossover study.
    • 10 certified airplane pilots participated.
    • Performance measured in a flight simulator after active or placebo marijuana administration.

    Main Results:

    • All pilots showed significant performance decrements 30 minutes post-marijuana.

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  • A nonsignificant decrease in performance continued for 2 hours in a subset of pilots.
  • Marijuana's psychomotor effects were evident in flight tasks.

    • Conclusions:

    • Marijuana intoxication negatively impacts pilot performance.
    • Flight simulator performance may serve as a sensitive indicator of marijuana's psychomotor effects.
    • Further research is needed to establish safety margins for pilots using marijuana.