Scale-Free Dynamics in Animal Groups and Brain Networks.
Scale-Free Dynamics in Animal Groups and Brain Networks.
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DOI：
10.3389/fnsys.2020.591210
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发表时间：
2020
影响因子：
3
通讯作者：
Plenz D
中科院分区：
文献类型：
--
作者：
Ribeiro TL;Chialvo DR;Plenz D
在由无数小实体组成的系统中，秩序的出现令集体现象着迷。它们在自然界中无处不在，并且可以在物理和生物系统的广泛尺度上找到。它们的关键特征是适应性集体行为的出现似乎毫不费力，而这种适应性集体行为不能用系统单个组件的属性来简单地解释。这种观点的重点是最近的见解的相似性的相关性，两个明显不同的现象：群集在动物群体和神经元合奏活动在大脑中。首先，我们将总结在鸟类群体和宏观尺度的人类大脑活动的自发组织利用相关函数和见解的关键动力学的研究结果。然后，我们将讨论最近的实验结果，这些方法适用于集体反应的神经元视觉和运动处理，即，到中尺度和微观尺度上神经网络的局部扰动。我们展示了无标度相关函数如何捕获非人灵长类动物中诱发神经元群体中神经元雪崩的集体组织以及啮齿动物视觉处理过程中神经元之间的集体组织。这些实验结果表明，在尺度远大于直接神经元相互作用的长度观察到的连贯的集体神经活动是一个相变的演示，我们讨论了不连续或连续相变的实验支持。我们的结论是，在或接近相变神经元的信息可以传播在大脑中提出类似的效率发生在一些动物群体中观察到的集体适应性反应。
Collective phenomena fascinate by the emergence of order in systems composed of a myriad of small entities. They are ubiquitous in nature and can be found over a vast range of scales in physical and biological systems. Their key feature is the seemingly effortless emergence of adaptive collective behavior that cannot be trivially explained by the properties of the system's individual components. This perspective focuses on recent insights into the similarities of correlations for two apparently disparate phenomena: flocking in animal groups and neuronal ensemble activity in the brain. We first will summarize findings on the spontaneous organization in bird flocks and macro-scale human brain activity utilizing correlation functions and insights from critical dynamics. We then will discuss recent experimental findings that apply these approaches to the collective response of neurons to visual and motor processing, i.e., to local perturbations of neuronal networks at the meso- and microscale. We show how scale-free correlation functions capture the collective organization of neuronal avalanches in evoked neuronal populations in nonhuman primates and between neurons during visual processing in rodents. These experimental findings suggest that the coherent collective neural activity observed at scales much larger than the length of the direct neuronal interactions is demonstrative of a phase transition and we discuss the experimental support for either discontinuous or continuous phase transitions. We conclude that at or near a phase-transition neuronal information can propagate in the brain with similar efficiency as proposed to occur in the collective adaptive response observed in some animal groups.
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影响因子：
2.4
作者：
Cavagna, Andrea;Del Castello, Lorenzo;Viale, Massimiliano
通讯作者：
Viale, Massimiliano
DOI：
10.1073/pnas.0711437105
发表时间：
2008-01-29
影响因子：
11.1
作者：
Ballerini, M.;Calbibbo, N.;Zdravkovic, V.
通讯作者：
Zdravkovic, V.
影响因子：
2
作者：
Couzin, ID;Krause, J;Franks, NR
通讯作者：
Franks, NR
影响因子：
2.4
作者：
Barberis, Lucas;Albano, Ezequiel V.
通讯作者：
Albano, Ezequiel V.
DOI：
10.1088/1751-8113/42/44/445001
发表时间：
2009-11-06
影响因子：
2.1
作者：
Bertin, Eric;Droz, Michel;Gregoire, Guillaume
通讯作者：
Gregoire, Guillaume