The adaptive range of 1/f isometric force production.
The adaptive range of 1/f isometric force production.
复制标题
1/f 等长力产生的自适应范围。
DOI：
10.1037/a0012731
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Newell,KarlM
中科院分区：
文献类型：
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作者：
Sosnoff,JacobJ;Valantine,AndrewD;Newell,KarlM
研究了1/f动力学在等距力输出中的自适应范围。参与者对具有可预测需求（恒定和正弦）和1/f噪声波形（白色，粉红色，棕色和黑色）的目标产生等距力，这些波形在力信号中表示的频率带宽（0-4 Hz， 0-8 Hz和0-12 Hz）中也有所不同。试验内1/f力动态产生的范围根据任务条件在比粉红噪声深和比黑噪声浅之间。各1/f力动力学指数随力信号频率带宽的增大而减小。研究结果揭示了1/f力变化的自适应范围，尽管受到任务约束的动态调节。（PsycINFO数据库记录(c) 2016 APA，版权所有）
The adaptive range of 1/f dynamics in isometric force output was investigated. Participants produced isometric force to targets with predictable demands (constant and sinusoidal) and 1/f noise waveforms (white, pink, brown, and black) that also varied in the frequency bandwidth represented in the force signal (0–4 Hz, 0–8 Hz, and 0–12 Hz). The range of within-trial 1/f force dynamics produced was between darker than pink noise and lighter than black noise according to task conditions. The exponent of the respective 1/f force dynamics decreased as the frequency bandwidth of the force signal increased. The findings reveal an adaptive though restricted range of 1/f force variation that is modulated by the dynamics of the task constraints.(PsycINFO Database Record (c) 2016 APA, all rights reserved)