睡眠剥夺48h对追踪作业工效、视反应能力的影响

Effects of 48-hour sleep deprivation on performance of tracking and visual reaction

目的：探讨48h睡眠剥夺对追踪作业工效、视反应能力的影响及10h睡眠的恢复效果．方法：14名健康男性青年在睡眠剥夺条件下，每间隔4h进行光标追踪、oddball模式视反应双重任务测试及oddball模式视反应单任务测试．结果：双重任务中，光标追踪距离D在睡眠剥夺32,44，48h显著升高（P＞0．05）、视反应的平均反应时（mRT）、靶刺激反应时（TsRT）、刺激的反应正确率（AR）在睡眠剥夺20h及以后各时程均显著改变，反应时延长，正确率下降（P<0.05）．单任务视反应测试的mRT在睡眠剥夺24h，36h及以后各时程显著升高（P＜0.05）,AR无显著改变．10h睡眠后，双重任务中D已恢复至正常对照水平，但TSRT，AR较对照仍有显著差异（P〈0.05）；单任务中mRT,AR与正常对照值无显著差别．结论：睡眠剥夺对目标追踪能力、视反应能力有较大程度的不良影响;10h的补充睡眠有一定的恢复效果．

Aim: To explore the effects of 48-hour sleep deprivation on performance of tracking and visual reaction andthe results of recovery after ic hour sleep. Methods: Dualtask test of tracking and visual reaction of oddball mode andsingle task test of visual reaction of oddball mode were doneby fourteen healthy male subjects (aged 19～21 ) exposed tosleep deprivation for 48 hours. Results: In the dual task,distances (D)of tracking test were significantly higher at 32h, 44 h and 48 h of sleep deprivation (P<0. 05 ), from 20 hto 48 h of sleep deprivation the mean reaction time (mRT )and the reaction time of target stimulation (TsRT) of visualreaction test were significantly longer than those of control(P<0. 05 )and the accurate rate (AR) was significantly low-er (P< 0.05). The mRT of single task increased at 24 hand from 36 h to 48 h of sleep deprivation (P<0. 05), theAR changed insignificantly. After 10-hour sleep, the dis-tance of tracking of dual task test recoverd to the level ofcontrol, but the TsRT was still longer and the AR was lower (P < 0. 05 ). The mRT and AR of single task testchanged insignificantly. Conclusion: There are some kind ofadverse effects on performance of tracking and visual reaction after exposure to sleep deprivation. The 10-hour sleepcan be useful for the recovery after sleep deprivation.