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The Pervasiveness of 1/f Scaling in Speech Reflects the Metastable Basis of Cognition

机译：1 / f缩放在语音中的普遍性反映出认知的亚稳态基础

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Human neural and behavioral activities have been reported to exhibit fractal dynamics known as 1/f noise, which is more aptly named 1/f scaling. Some argue that 1/f scaling is a general and pervasive property of the dynamical substrate from which cognitive functions are formed. Others argue that it is an idiosyncratic property of domain-specific processes. An experiment was conducted to investigate whether 1/f scaling pervades the intrinsic fluctuations of a spoken word. Ten participants each repeated the word bucket over 1,000 times, and fluctuations in acoustic measurements across repetitions generally followed the 1/f scaling relation, including numerous parallel yet distinct series of 1/f fluctuations. On the basis of work showing that 1/f scaling is a universal earmark of metastability, it is proposed that the observed pervasiveness of 1/f fluctuations in speech reflects the fact that cognitive functions are formed as metastable patterns of activity in brain, body, and environment.
机译：据报道，人类的神经和行为活动表现出称为1 / f噪声的分形动力学，更恰当地称为1 / f缩放。一些人认为1 / f缩放是形成认知功能的动态底物的普遍和普遍的特性。其他人则认为这是特定领域过程的特质。进行了一项实验，以研究1 / f缩放是否弥漫了口语单词的内在波动。十个参与者每个词桶重复了1000次以上，并且重复之间的声学​​测量波动通常遵循1 / f缩放关系，包括许多平行但又不同的一系列1 / f波动。根据表明1 / f标度是亚稳态的普遍指标的工作，建议观察到的1 / f语音波动的普遍性反映了以下事实：认知功能形成为大脑，身体，和环境。

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