睡眠剥夺36h对青年军人心理旋转能力的影响及其事件相关电位研究

摘要

目的:探讨36 h睡眠剥夺对青年军人心理旋转的脑电生理指标的影响.方法:15名健康青年军人在36 h睡眠剥夺条件下,分别在睡眠剥夺前后进行心理旋转任务的事件相关电位( event - related potentials,ERP)测定.测量P500的潜伏期、波幅及其错误数和反应时.结果:①与SD 0 h[正像:23％±6％,(522.64±14.26) ms；镜像:25％±5％,(542.61±12.31)ms]相比,SD 36 h正像错误率(24％±6％)差异不显著(P＞0.05),镜像错误率(27％±8％)显著升高(P＜0.05),正镜像反应时[正像:(589.10±16.73)ms,镜像:(616.10±14.69)ms]均显著延长(P＜0.05)；②与SD 0 h波幅[正像:(8.67±2.34)μV；镜像:(6.69±2.63) μV]、潜伏期[正像:(474.17±24.65)ms;镜像:(483.51±25.12)ms]相比,SD 36 h正像波幅(8.58±3.51)μV差异不显著(P＞0.05),镜像波幅(6.04±2.45) μV降低,正、镜像潜伏期[正像:(490.31±34.68) ms;镜像:(498.56±35.15)ms]均延迟,均差异有统计学意义(P＜0.05).结论:36 h睡眠剥夺在一定程度上损害心理旋转能力,正镜像受损程度不一致,其中镜像心理旋转能力严重受损.%Objective;To explore the effect of 36 h sleep deprivation on the brain electrophysiological indicator of mental rotation in young soldiers. Methods: During 36 h sleep deprivation, 15 healthy young soldiers were detected on mental rotation tests by event - related potentials system before and after sleep deprivation. At the same time , the incubation period and amplitude of P500 , and its wrong number and reaction time were determined, respectively. Results:①Compared with SD 0 h in subjects, SD 36 h in subjects had no difference in normal error rate [ (23% ±6% ) vs (24% ±6% ) ,P >0. 05] , and had significantly increased mirror error rale[ (25% ±5% ) vs (27% ±8%) ,P<0.05] , and had obviously prolonged normal and mirror reaction time[ (522. 64 ± 14. 26) ms vs (589. 10 ±16.73)ms; (542.61 ± 12.31 )ms vs (616. 10 ± 14. 69) ms,P <0. 05]. ② Compared with SD 0 h in subjects, SD 36 h in subjects showed no significant difference in normal amplitudes [ (8.67 ±2.34)μV vs (8.58 ± 3.51)μV,P> 0.05] ,and showed significantly reduced amplitudes in mirror [(6.69 ±2.63)μV vs (6.04 ± 2.45)μV,P <0. 05]. Additionally, SD 36 h in subjects showed slightly increased P500 latencies in normal and mirror than those in SD 0 h [ (474. 17 ±24. 65) ms is (490.31 ±34. 68) ms; (483. 51 ±25.12) ms vs (498. 56 ± 35. 15) ms, P <0. 05 ]. Conclusion:Thirty - six hours sleep deprivation can harm the ability of mental rotation to a certain extent, and the extent of the damage in normal and mirror is different, the mental rotation ability is severely damaged in mirror.