Hub-activated signal transmission in complex networks.
Hub-activated signal transmission in complex networks.
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DOI：
10.1103/physreve.89.030701
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发表时间：
2014-03
期刊：
影响因子：
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通讯作者：
Sven Jahnke;Raoul-Martin Memmesheimer;M. Timme
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文献类型：
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作者：
Sven Jahnke;Raoul-Martin Memmesheimer;M. Timme
各种网络系统都将高度连接的节点（集线器）作为突出的结构元素。然而，枢纽在许多此类网络的集体非线性动力学中的功能作用尚不清楚。在这里，我们提出神经回路中的集线器可以沿着特定子网络的序列激活局部信号传输。有趣的是，与之前关于集线器功能角色的建议相比，这里传输信号的不是集线器本身，而是非集线器子网络。核心机制依赖于集线器和非集线器相互提供激活反馈。因此，它可能会引起神经元和其他通信网络中特定脉冲和速率信号的传播。
A wide range of networked systems exhibit highly connected nodes (hubs) as prominent structural elements. The functional roles of hubs in the collective nonlinear dynamics of many such networks, however, are not well understood. Here, we propose that hubs in neural circuits may activate local signal transmission along sequences of specific subnetworks. Intriguingly, in contrast to previous suggestions of the functional roles of hubs, here, not the hubs themselves, but nonhub subnetworks transfer the signals. The core mechanism relies on hubs and nonhubs providing activating feedback to each other. It may, thus, induce the propagation of specific pulse and rate signals in neuronal and other communication networks.