Maruff P, Snyder P, McStephen M, Collie A, Darby D
CogState Ltd, Melbourne, Victoria, Australia.
Br J Sports Med. 2006 Jun;40(6):556-60. doi: 10.1136/bjsm.2004.016204.
Prolonged exposure to extreme environments may result in cognitive changes that may influence decision making ability and increasing risk of injury or death.
To measure the cognitive performance of a healthy man as he completed a 17 day desert expedition.
A computer based cognitive test battery, subjective cognitive rating scale, and measures of physical characteristics were used. Objective cognitive performance was compared with the performance of eight age matched men who remained in their own homes.
The speed of psychomotor, attentional, and executive functions decreased as the expedition progressed, but the accuracy of performance remained unaffected. Although some impairments were large, they resolved completely once the expedition was completed. Subjective ratings indicated that the subject had insight into his failing cognitive performance during the expedition.
Cognitive performance can be measured repeatedly throughout an expedition in an extreme environment. Cognitive impairment may occur.
长期暴露于极端环境可能导致认知变化，这可能会影响决策能力，并增加受伤或死亡风险。
测量一名健康男性在完成为期17天的沙漠探险时的认知表现。
使用基于计算机的认知测试组、主观认知评分量表以及身体特征测量方法。将客观认知表现与八名年龄匹配且留在家中的男性的表现进行比较。
随着探险的进行，心理运动、注意力和执行功能的速度下降，但表现的准确性未受影响。尽管有些损伤较大，但探险结束后它们完全恢复。主观评分表明，受试者在探险期间对自己逐渐下降的认知表现有所洞察。
在极端环境下的探险过程中，可以反复测量认知表现。可能会出现认知障碍。
