Effects of the amount of practice and time interval between practice sessions on the retention of internal models
Effects of the amount of practice and time interval between practice sessions on the retention of internal models
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DOI：
10.1371/journal.pone.0215331
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发表时间：
2019-04-16
期刊：
影响因子：
3.7
通讯作者：
Fukuzawa, Kazuyoshi
中科院分区：
文献类型：
--
作者：
Yamada, Chiharu;Itaguchi, Yoshihiro;Fukuzawa, Kazuyoshi
练习量和练习之间的时间间隔是影响运动学习效率的重要因素。在这里，我们的目的是揭示新内部模型的保留和巩固与练习量和练习之间的时间间隔之间的关系。我们采用视觉运动旋转跟踪任务来测试以下假设：（1）由于达到任务表现平台后的大量练习，新的内部模型得到巩固；（2）练习之间的时间间隔较长使得激活新的内部模型变得困难。参与者被分配到四组中的一组，这四组在练习量和练习之间的时间间隔方面有所不同。他们执行了一项跟踪任务，其中视觉运动顺时针旋转 120 度，并需要使用鼠标光标跟踪计算机显示屏上的移动目标。为了评估新内部模型的保留和巩固，我们计算了后遗症和节省作为运动学习的衡量标准。据我们所知，这是第一项在使用视觉运动跟踪任务的实验中同时操纵练习量和练习之间的时间间隔的研究。我们的结果支持了之前报道的观点，即大量实践对于巩固新的内部模型是必要的。
The amount of practice and time interval between practice sessions are important factors that influence motor learning efficiency. Here, we aimed to reveal the relationship between the retention and consolidation of a new internal model, and the amount of practice and time interval between practice sessions. We employed a visuomotor rotation tracking task to test the hypotheses that (1) a new internal model consolidates owing to extensive practice after reaching a task performance plateau and (2) a longer time interval between practice sessions makes it difficult to activate a new internal model. The participants were assigned to one of the four groups that differed in terms of the amount of practice and the time interval between practice sessions. They performed a tracking task in which they experienced 120 degrees clockwise visuomotor rotation and were required to track a moving target on a computer display using a mouse cursor. To evaluate the retention and consolidation of a new internal model, we calculated the aftereffects and savings as measures of motor learning. To the best our knowledge, this is the first study to manipulate both the amount of practice and the time interval between practice sessions simultaneously in one experiment using a visuomotor tracking task. Our results support the previously reported idea that extensive practice is necessary for the consolidation of a new internal model.