Sleep-related offline learning in a complex arm movement sequence.
Sleep-related offline learning in a complex arm movement sequence.
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DOI：
10.2478/hukin-2014-0002
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发表时间：
2014-03-27
影响因子：
2.3
通讯作者：
Blischke K
中科院分区：
文献类型：
--
作者：
Malangré A;Leinen P;Blischke K
睡眠被认为可以引起新学习的程序技能的离线改进，这是一种归因于内部技能表征的增强巩固的现象。在运动领域，增强巩固几乎只针对连续手指敲击技能。本研究的目的是将睡眠相关增强巩固的概念扩展到更接近日常运动技能的任务。这是通过使用非优势臂的一系列无限制的到达动作来实现的。15个到达动作必须尽可能快地执行，遵循水平面上的空间模式。在结束每一个动作时，必须将一个钉子安装到电子钉板上的一个孔中。两个实验组接受初始训练，一个在晚上，另一个在早上。随后，两组的表现都在12小时后重新测试，并在24小时后再次测试。因此，在保持期间，每个人都经历了一个晚上的睡眠，之后或之前有一个清醒的间隔。在整个培训和复试过程中，表现误差保持在较低水平。然而，平均总执行时间，任务执行速度的指示，显着降低了所有个人在整个初始培训（没有组差异），并显着降低，在夜间睡眠后，但不醒来后，在任何一组再次。这一发现似乎不仅仅是由于在重新测试时提供的额外练习，因为只有在一夜睡眠后，两个实验组的个体也显示出超出其初始训练表现估计的表现改善。
Sleep is known to elicit off-line improvements of newly learned procedural skills, a phenomenon attributed to enhancement consolidation of an internal skill representation. In the motor domain, enhancement consolidation has been reported almost exclusively for sequential-finger-tapping skills. The aim of the present study was to extend the notion of sleep-related enhancement consolidation to tasks closer to everyday motor skills. This was achieved by employing a sequence of unrestrained reaching-movements with the non-dominant arm. Fifteen reaching-movements had to be executed as fast as possible, following a spatial pattern in the horizontal plane. Terminating each movement, a peg had to be fitted into a hole on an electronic pegboard. Two experimental groups received initial training, one in the evening, the other one in the morning. Subsequently, performance in both groups was retested twelve, and again 24 hrs later. Thus, during retention each individual experienced a night of sleep, either followed or preceded by a wake interval. Performance error remained low throughout training and retests. Yet mean total execution time, indicative of task execution-speed, significantly decreased for all individuals throughout initial training (no group differences), and significantly decreased again in either group following nocturnal sleep, but not following wake. This finding does not appear to result merely from additional practice afforded at the time of retests, because only after a night of sleep individuals of both experimental groups also revealed performance improvement beyond that estimated from their initial training performance.
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影响因子：
2.1
作者：
Panzer, Stefan;Krueger, Melanie;Shea, Charles H.
通讯作者：
Shea, Charles H.
影响因子：
3.7
作者：
Friedman J;Korman M
通讯作者：
Korman M
DOI：
10.1523/jneurosci.3295-10.2010
发表时间：
2010-10-20
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Brawn TP;Fenn KM;Nusbaum HC;Margoliash D
通讯作者：
Margoliash D
DOI：
10.1037/a0012733
发表时间：
2009-04-01
影响因子：
2.1
作者：
Kovacs, Attila J.;Muehlbauer, Thomas;Shea, Charles H.
通讯作者：
Shea, Charles H.
影响因子：
1.9
作者：
Cai, Denise J.;Rickard, Timothy C.
通讯作者：
Rickard, Timothy C.