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探讨40min午睡产生的睡眠惯性对认知功能的影响。方法:选择10名自愿参加测试的健康军校男性青年,用脑电图记录午间入睡状况,在睡眠40min后唤醒被试,随即进行两次认知功能系列测量,包括:连续相加测验,视觉心理旋转测验,字母划消测验,工作记忆测验。唤醒即刻测验与第2次测验时间间隔为20min,比较两次系列测验中认知功能的变化情况,以及是否恢复到基线水平,即正常工作状态。结果:系列测验中除视觉心理旋转测验外,唤醒即时测量反应时较基线水平延长,正确率降低。随时间推移,第2次测试,反应时较唤醒即时明显缩短,与基线水平相比差异均无显著性意义(P>0.05);正确率除字母工作记忆测验〖字母记忆唤醒即时测验平均正确率为(84±8.09)%,第二次平均正确率为(87±6.3)%犦的与基线水平犤基线平均正确率为(97±6.26)%犦相比,差异有显著性意义(t=-1.406,P<0.05),其他测验差异无显著性意义。实验中睡眠惯性对字母工作记忆正确率的影响持续时间大于1h(t=3.943,P<0.01),而反应时恢复到基线水平在醒后0.5h内(t=0.683,P>0.05)。结论:睡眠惯性影响认知功能,并持续一段时间,对复杂任务(字母工作记忆)的正确率的影响大于对反应时的影响。
To investigate the effect of sleep inertia on cognitive function in 40min nap. Methods: Ten male health cadets who volunteered to take the test were enrolled in this study. Their electroacupuncture was used to record midday sleep conditions. After the sleep was over for 40 minutes, the subjects were awakened. Two series of cognitive function tests were performed, including continuous addition test, visual psychology Rotation test, letter cancellation test, working memory test. Wake-up test and the second test interval of 20min, comparing two series of tests of cognitive function changes, and whether to return to baseline level, that is, normal working condition. Results: In addition to visual psychological rotation test series, wake-up real-time measurement of response time longer than the baseline level, the correct rate decreased. With the passage of time, the second test, the reaction was significantly shorter than the awake immediately, compared with the baseline level was no significant difference (P> 0.05); correct rate in addition to the letter working memory test awakening letter test real-time test average correct rate (84 ± 8.09)%, the second average accuracy rate was (87 ± 6.3)% 犦, the difference was statistically significant compared with the baseline level 犤 (97 ± 6.26)% ((t = -1.406, P <0.05). There was no significant difference in other tests. The effect of sleep inertia on the correct rate of working memory of letters was longer than 1h (t = 3.943, P <0.01), and returned to baseline within 0.5h after waking (t = 0.683, P> 0.05). CONCLUSION: Sleep inertia affects cognitive function for a period of time, affecting the correct rate of complex tasks (working memory of the letters) more than response time.