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目的探讨36h睡眠剥夺(SD)对青年军人表象旋转加工脑电生理机制的影响。方法 12名健康青年军人在36小时睡眠剥夺条件下,分别在睡眠剥夺前后进行手旋转任务的事件相关电位(ERP)测定。测量P500的潜伏期、波幅。结果 1与SD0h波幅[左手:(5.8±1.9)μ;右手:(8.6±3.4)μV]相比,SD 36h左右手波幅[左手:(3.6±1.6)μV;右手:(4.7±2.1)μV]均显著降低(t=5.36,6.22;P<0.01);2与SD 0h潜伏期[左手:(525.3±76.3)ms;右手:(504.4±72.2)ms]相比,SD 36h左右手潜伏期[左手:(588.3±92.7)ms;右手:(567.5±67.1)ms]均显著延迟(t=6.09,6.16;P<0.01);3与SD 0h相比,尤其发生在180°旋转处SD 36h潜伏期显著延迟,波幅显著降低(P<0.001)。结论 36h睡眠剥夺在一定程度上损害表象旋转操作加工机制,其中严重损害解剖学上不可能的手旋转角度的表象操作过程。
Objective To investigate the effects of 36h sleep deprivation (SD) on brain electrophysiological mechanism of young soldiers’ surface rotation. Methods Twelve healthy young soldiers underwent hand-off event-related event-related potentials (ERP) before and after sleep deprivation under 36-hour sleep deprivation. Measure the latency and amplitude of P500. RESULTS: Compared with the amplitude of SD0h [left hand: (3.6 ± 1.6) μV; right hand: (4.7 ± 2.1) μV] (T = 5.36,6.22; P <0.01); 2 Compared with SD 0h latency [left hand: (525.3 ± 76.3) ms; right hand: (504.4 ± 72.2) ms] 588.3 ± 92.7) ms; right hand: (567.5 ± 67.1) ms] were significantly delayed (t = 6.09,6.16; P <0.01); 3 Compared with SD 0h, SD 36h latency was significantly delayed at 180 ° rotation, The amplitude was significantly lower (P <0.001). Conclusions 36h sleep deprivation compromised to some extent the appearance of rotational manipulation mechanisms, which severely compromised the appearance of anatomically impossible hand rotation.