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Psychological testing at high altitudes

M Nelson

    Aviation, Space, and Environmental Medicine
    |February 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    High altitude mountaineering significantly impairs cognitive function and alters personality. At 5,000 meters, climbers experienced reduced intellectual ability, increased paranoia, and obsessive-compulsive traits.

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    Area of Science:

    • Environmental Psychology
    • Altitude Physiology
    • Cognitive Neuroscience

    Background:

    • Mountaineering expeditions to high altitudes present unique physiological and psychological challenges.
    • Understanding the impact of extreme altitude on cognitive function and personality is crucial for climber safety and performance.

    Purpose of the Study:

    • To investigate the effects of varying altitudes during a high-altitude expedition on psychological and intellectual functioning.
    • To assess cognitive ability and personality changes in mountaineers at different elevations.

    Main Methods:

    • Psychological testing administered to 20 subjects during a 35-day Denali expedition.
    • Data collected at multiple altitudes: sea level, 3,810 m, and 5,000 m.
    • Assessment of intellectual functioning and personality traits.

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    Main Results:

    • Minimal psychological variation observed at lower altitudes.
    • Significant cognitive deterioration noted at 5,000 m.
    • Marked increases in paranoia and obsessive-compulsiveness, with moderate rises in depression and hostility at 5,000 m.

    Conclusions:

    • Extreme altitude exposure, specifically at 5,000 m, detrimentally affects cognitive abilities.
    • High altitude environments can precipitate significant negative personality changes, including paranoia and obsessive-compulsive behaviors.
    • Further research is warranted to explore mitigation strategies for psychological effects of high-altitude exposure.