1/f scaling in movement time changes with practice in precision aiming.
1/f scaling in movement time changes with practice in precision aiming.
复制标题
运动时间的 1/f 缩放比例会随着精确瞄准的练习而变化。
DOI：
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
G. V. van Orden
中科院分区：
文献类型：
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作者：
M. Wijnants;A. Bosman;F. Hasselman;R. Cox;G. V. van Orden
当人们进行重复的目标导向运动时，连续运动的持续时间不可避免地会随着试验而变化，无论是熟练的还是不熟练的。在此，我们将精确瞄准的范式作为一个方法论框架。提供的证据表明，在封闭的任务中的运动变异性不是一个随机现象，而是显示出一个连贯的时间结构，称为1/f缩放。当参与者在高度受限的运动任务中接受训练时，比例关系显得更加清晰。此外，递归量化分析（RQA）和样本熵（SampEn）作为分析工具表明，运动时间的变化变得更少的随机性和更多的模式与运动学习。这表明，运动学习可以被看作是一个新兴的，动态融合的合作子系统到一个低维的组织。这些结果支持了1/f缩放在整个认知系统中无处不在的观点，并表明它在认知和运动功能的协调中发挥着根本性作用。
When people perform repeated goal-directed movements, consecutive movement durations inevitably vary over trials, in poor as well as in skilled performances. The well-established paradigm of precision-aiming is taken as a methodological framework here. Evidence is provided that movement variability in closed tasks is not a random phenomenon, but rather shows a coherent temporal structure, referred to as 1/f scaling. The scaling relation appears more clearly as participants become trained in a highly constrained motor task. Also Recurrence Quantification Analysis (RQA) and Sample Entropy (SampEn) as analytic tools show that variation of movement times becomes less random and more patterned with motor learning. This suggests that motor learning can be regarded as an emergent, dynamical fusing of collaborating subsystems into a lower-dimensional organization. These results support the idea that 1/f scaling is ubiquitous throughout the cognitive system, and suggest that it plays a fundamental role in the coordination of cognitive as well as motor function.
影响因子：
5.4
作者：
Gilden, DL
通讯作者：
Gilden, DL