Weak connections form an infinite number of patterns in the brain

Hai-Peng Ren, Chao Bai, Murilo S. Baptista, Celso Grebogi

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
6 Downloads (Pure)


Recently, much attention has been paid to interpreting the mechanisms for memory formation in terms of brain connectivity and dynamics. Within the plethora of collective states a complex network can exhibit, we show that the phenomenon of Collective Almost Synchronisation (CAS), which describes a state with an infinite number of patterns emerging in complex networks for weak coupling strengths, deserves special attention. We show that a simulated neuron network with neurons weakly connected does produce CAS patterns, and additionally produces an output that optimally model experimental electroencephalograph (EEG) signals. This work provides strong evidence that the brain operates locally in a CAS regime, allowing it to have an unlimited number of dynamical patterns, a state that could explain the enormous memory capacity of the brain, and that would give support to the idea that local clusters of neurons are sufficiently decorrelated to independently process information locally.
Original languageEnglish
Article number46472
JournalScientific Reports
Early online date20 Apr 2017
Publication statusPublished - 2017


  • Complex Networks
  • Hindmarsh-Rose Neuron model
  • Collective Almost Synchronisation
  • Electroencephalography


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