Causal and structural connectivity of pulse-coupled nonlinear networks

Douglas Zhou, Yanyang Xiao, Yaoyu Zhang, Zhiqin Xu, David Cai

Research output: Contribution to journalArticlepeer-review


We study the reconstruction of structural connectivity for a general class of pulse-coupled nonlinear networks and show that the reconstruction can be successfully achieved through linear Granger causality (GC) analysis. Using spike-triggered correlation of whitened signals, we obtain a quadratic relationship between GC and the network couplings, thus establishing a direct link between the causal connectivity and the structural connectivity within these networks. Our work may provide insight into the applicability of GC in the study of the function of general nonlinear networks.

Original languageEnglish (US)
Article number054102
JournalPhysical Review Letters
Issue number5
StatePublished - Jul 29 2013

ASJC Scopus subject areas

  • General Physics and Astronomy


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