EFFECTS OF HYPOXIA ON THE LUMINANCE THRESHOLD FOR TARGET DETECTION

  • 1 January 1983
    • journal article
    • research article
    • Vol. 54  (2) , 112-115
Abstract
A technique is described for determining luminance thresholds [for night vision] for detection of realistic target objects, which is suitable for use in simulators and environmental chambers. Data obtained by this technique during a 10-day exposure to high altitude indicate impairments of target detection in direct relation to target viewing distance, absolute target size and length of hypoxia exposure. In general, impairments reached their maximum during the 2nd day of exposure and recovered gradually thereafter. Wide differences among individual [human] observers were noted. Implications of the results are discussed.

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