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首页> 外文期刊>Journal of Nonlinear Dynamics >A Review of Theoretical Perspectives in Cognitive Science on the Presence of1/fScaling in Coordinated Physiological and Cognitive Processes
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A Review of Theoretical Perspectives in Cognitive Science on the Presence of1/fScaling in Coordinated Physiological and Cognitive Processes

机译：生理和认知过程协调中1 / f标度存在的认知科学理论观点综述

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摘要

Time series of human performances present fluctuations around a mean value. These fluctuations are typically considered as insignificant, and attributable to random noise. Over recent decades, it became clear that temporal fluctuations possess interesting properties, however, one of which the property of fractal 1/fscaling. 1/fscaling indicates that a measured process extends over a wide range of timescales, suggesting an assembly over multiple scales simultaneously. This paper reviews neurological, physiological, and cognitive studies that corroborate the claim that 1/fscaling is most clearly present in healthy, well-coordinated activities. Prominent hypotheses about the origins of 1/fscaling are confronted with these reviewed studies. It is concluded that 1/fscaling in living systems appears to reflect their genuine complex nature, rather than constituting a coincidental side-effect. The consequences of fractal dynamics extending from the small spatial and temporal scales (e.g., neurons) to the larger scales of human behavior and cognition, are vast, and impact the way in which relevant research questions may be approached. Rather than focusing on specialized isolable subsystems, using additive linear methodologies, nonlinear dynamics, more elegantly so, imply a complex systems methodology, thereby exploiting, rather than rejecting, mathematical concepts that enable describing large sets of natural phenomena.
机译：人类绩效的时间序列呈现出围绕平均值的波动。这些波动通常被认为是微不足道的，并且归因于随机噪声。在最近几十年中，很明显，时间波动具有有趣的性质，但是，分形1 /缩放的性质之一。 1 /缩放表示所测量的过程在很宽的时间范围内扩展，表明同时在多个范围上进行组装。本文回顾了神经学，生理学和认知研究，证实了1 / scaling最明显地存在于健康，协调良好的活动中的说法。这些审查的研究面临着关于1 /财政除垢起源的重要假设。结论是，生物系统中的1 / fscaling似乎反映了它们真正的复杂性质，而不是构成偶然的副作用。从小的时空尺度（例如神经元）到更大的人类行为和认知尺度的分形动力学的后果是巨大的，并且影响了解决相关研究问题的方式。使用加性线性方法，非线性动力学，而不是专注于专门的可分离子系统，更优雅地暗示了一种复杂的系统方法，从而利用（而不是拒绝）能够描述大量自然现象的数学概念。

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