Sleep and the time course of motor skill learning
Sleep and the time course of motor skill learning
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DOI：
10.1101/lm.58503
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发表时间：
2003-07-01
影响因子：
2
通讯作者：
Stickgold, R
中科院分区：
文献类型：
--
作者：
Walker, MP;Brakefield, T;Stickgold, R
越来越多的证据表明睡眠在程序性学习过程中发挥着重要作用。最近，睡眠与初始习得后运动技能学习的持续发展有关。然而，睡眠前后运动学习的时间演变、不同训练方案的影响以及多次睡眠期间运动学习的长期发展仍然未知。在这里，我们报告了经过多天连续手指敲击任务训练和重新测试的受试者的数据。研究结果首先表明，在最初的训练之后，以前依赖于练习的小幅进步是可能的，但在睡眠过程中产生的与练习无关的大的进步是不可能的。其次，将初始训练量加倍并不会改变随后在一夜之间进行的依赖睡眠的学习量。第三，依赖睡眠的学习量与训练期间实现的依赖实践的学习量并不相关，这表明存在两个离散的运动学习过程。最后，虽然大多数依赖睡眠的运动技能学习是在训练后的第一次睡眠期间发展的，但额外的睡眠仍然可以提供持续的改进。
Growing evidence Suggests that sleep plays an important role in the process of procedural learning. Most recently, sleep has been implicated in the continued development of motor-skill learning following initial acquisition. However, the temporal evolution of motor learning before and after sleep, the effects of different training regimens, and the long-term development of motor learning across multiple flights of sleep remain unknown. Here, we report data for subjects trained and retested on a sequential finger-tapping task across multiple days. The findings demonstrate firstly that following initial training, small practice-dependent improvements are possible before, but not following the large practice-independent gains that develop across a flight of sleep. Secondly, doubling the quantity of initial training does not alter the amount of subsequent sleep-dependent learning that develops overnight. Thirdly, the amount of sleep-dependent learning does not correlate with the amount of practice-dependent learning achieved during training, suggesting the existence of two discrete motor-learning processes. Finally, whereas the majority of sleep-dependent motor-skill learning develops during the first flight of sleep following training, additional flights of sleep still offer continued improvements.