论文部分内容阅读
目的：研究急性中度缺氧对人的注意广度及注意转移能力的影响．方法：利用低压舱模拟３６００ｍ，４４００ｍ高度１ｈ．５０００ｍ高度３０ｍｉｎ缺氧暴露，考察１６名健康男性青年的注意广度和黑红数字测验综合绩效的变化．结果：与正常对照值相比较，３６００ｍ缺氧暴露１ｈ各测试指标有不同程度的下降但未达到显著水平（Ｐ＞０．０５）．４４００ｍ缺氧暴露时黑红数字测验的反应时明显延长（Ｐ＜０．０５），综合绩效仅为对照值的７４％（Ｐ＜０．０５），注意广度测验综合绩效已降至８８％（Ｐ＜０．０５）．５０００ｍ暴露时黑红数字和注意广度测验综合绩效进一步降低（Ｐ＜０．０１）．结论：急性中度缺氧对注意的广度及转移能力已产生影响，工效不能得到保证．
Objective: To study the effect of acute moderate hypoxia on human attention span and attention transfer ability. Methods: The use of low-pressure cabin simulation 3600m, 4400m height 1h. Hypoxia exposure at a height of 5000m for 30min and the changes of the comprehensive performance of 16 healthy male youths and the test of black and red numbers. Results: Compared with the normal control group, the indexes of 3600m hypoxia exposure 1h decreased to some extent but did not reach the significant level (P> 0.05). 4400m hypoxia exposure black-red digital test response time was significantly longer (P <0.05), the overall performance was only 74% of the control value (P <0.05), attention breadth test overall performance has dropped to 88% ( P <0.05). The integrated performance of black-red number and attention span test at 5000m exposure further decreased (P <0.01). Conclusion: Acute moderate hypoxia has had an impact on the breadth and metastatic capacity of attention, and the ergonomics can not be guaranteed.