| 摘要: |
| 目的 比较3 700 m海拔驻防3个月与15个月军人认知功能的变化。方法 采用自身前后配对设计,对22名驻防3 700 m海拔3个月与15个月两个驻防时长男性新兵的8项认知功能指标进行对比研究,包括反应运动时、速度知觉、时间知觉、深度知觉、手臂稳定性、记忆广度、短时记忆、注意广度。结果 男性新兵在3 700 m海拔驻防15个月后,相比于3个月驻防时长,反应时延长(P<0.05),手臂稳定性下降(P<0.05),记忆力提高 (P<0.05),深度知觉容易出现"看近"现象(P<0.05)。结论 与3个月相比,15个月的高海拔驻防更为明显地损伤了军人的反应时、深度知觉、动作稳定性及注意广度。 |
| 关键词: 高海拔 驻防 军事人员 认知功能 |
| DOI：10.3724/SP.J.1008.2015.00455 |
| 投稿时间：2014-09-06修订日期：2014-12-05 |
| 基金项目:兰州军区2011年度立项课题(CLZ11JA30). |
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| Cognitive function of male recruits exposed to 3 700 maltitude for different periods: a comparison between 3 months and 15 months |
| BAO Hong-xiang,CHEN Zhu,WANG Dong-yong* |
(The Military Medical Training Brigade, Urumqi Ethnic Cadre College, Changji 831200, Xinjiang, China
*Corresponding author) |
| Abstract: |
| Objective To compare the cognitive function changes of newly-recruited male soldiers after exposure to 3 700 m altitude for 3 months and 15 months. Methods Using "pretest-posttest design", we selected 22 newly-recruited male soldiers in this experiment, and 8 cognitive function variables, namely, the reaction and motion time, speed-perception, time-perception, depth-perception, operating-dexterity, memory span, short-term memory and attention span were analyzed by paired comparison for 3 months and 15 months. Results Compared with soldiers exposed for 3 months, those exposed for 15 months had significantly increased reaction time (P<0.05), significantly decreased operating-dexterity performance (P<0.05), and significantly improved memory (P<0.05). The depth-perception was more liable to have the "see close" phenomenon. Conclusion Compared to those exposed to high altitude environment for 3 months, newly-recruited male soldiers exposed for 15 months have a more apparent damage to the reaction time, depth-perception, operating-dexterity and attention. |
| Key words: altitude be stationed military personnel cognitive function |
