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キーワード:
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要旨:
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
