Sleep restriction for the duration of a work week impairs multitasking performance
Sleep restriction for the duration of a work week impairs multitasking performance
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DOI：
10.1111/j.1365-2869.2010.00823.x
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发表时间：
2010-09-01
影响因子：
4.4
通讯作者：
Sallinen, Mikael
中科院分区：
文献类型：
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作者：
Haavisto, Marja-Leena;Porkka-Heiskanen, Tarja;Sallinen, Mikael
重要的是要制定轮班时间表，最大限度地减少与睡眠有关的人为错误的机会，在安全关键领域。关于睡眠限制（SR）影响的实验数据在这项开发工作中起着关键作用。为了提供这样的数据，我们进行了一个实验，其中认知要求和长时间的任务性能，模拟工作中的任务性能，测量下SR和以下恢复。20名年龄在19-29岁的健康男性志愿者参与了这项研究。其中13人有前两个基线日（每天8小时睡眠机会），然后是5个SR日（4小时睡眠），最后是两个恢复日（8小时睡眠）。7个对照组每晚睡眠8 h。在每个实验日，多任务性能进行了测试，在50分钟的会议，生理嗜睡进行了评估，在多任务性能使用脑电图（EEG）/眼电图（EOG）记录，并记录精神警觉任务的性能和Karolinska嗜睡量表。在整个实验过程中监测睡眠-觉醒节律。随着SR的延长和任务时间的延长，多任务绩效逐渐恶化。这种影响在群体水平上是显著的，但个体差异很大：所有参与者的表现都没有明显恶化。在EEG/EOG定义的嗜睡中也观察到类似的变化。在两次恢复睡眠机会中，SR的性能和嗜睡恢复过程继续进行。总之，我们的研究结果强调了连续几天不限制睡眠的轮班系统的重要性。
P>It is important to develop shift schedules that minimise the chance for sleep-related human error in safety-critical domains. Experimental data on the effects of sleep restriction (SR) play a key role in this development work. In order to provide such data, we conducted an experiment in which cognitively demanding and long-duration task performance, simulating task performance at work, was measured under SR and following recovery. Twenty healthy male volunteers, aged 19-29 years, participated in the study. Thirteen of them had first two baseline days (8-h sleep opportunity per day), then five SR days (4-h sleep) and finally two recovery days (8-h sleep). Seven controls were allowed to sleep for 8 h each night. On each experimental day, multitask performance was tested in 50-min sessions, physiological sleepiness was evaluated during multitask performance using electroencephalogram (EEG)/electrooculogram (EOG) recordings, and psychomotor vigilance task performance and Karolinska Sleepiness Scale were recorded. Sleep-wake rhythm was monitored throughout the experiment. The multitask performance progressively deteriorated as a result of prolongation of the SR and the time spent on the task. The effect was significant at group level, but individual differences were large: performance was not markedly deteriorated in all participants. Similar changes were observed also in EEG/EOG-defined sleepiness. The recovery process of performance and sleepiness from the SR continued over the two recovery sleep opportunities. In all, our findings emphasise the importance of shift systems that do not restrict sleep for several consecutive days.