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Neural and axonal heterogeneity improves information transmission

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  • Marcello, Salustri
  • Shunra, Yoshida
  • Ruggero, Micheletto

Abstract

The complexity of the brain lies in an intricate, not homogeneous structure; however, it is not clear how important is the heterogeneity at neural and structural levels and how it may play an important constituent in the brain’s functionality. Here we show the role of cellular and axonal delay heterogeneity in the brain’s performance. We simulated, at different scales, the spiking activity on a toroidal network realized in multiple dimensions with varying degrees of heterogeneity on a network of Izhikevich neuron models. We found that increasing the heterogeneity and network dimension improved the robustness and propagation speed of the spiking activity. Our results demonstrate that the behavior of the spiking activity depends on both the cellular neural and axonal delay heterogeneity. We developed a simple theoretical framework compatible with the results of the simulations, putting forward a novel method to strategically analyze any similar networks.

Suggested Citation

  • Marcello, Salustri & Shunra, Yoshida & Ruggero, Micheletto, 2023. "Neural and axonal heterogeneity improves information transmission," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 618(C).
    • Handle: RePEc:eee:phsmap:v:618:y:2023:i:c:s0378437123001826
    DOI: 10.1016/j.physa.2023.128627
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    References listed on IDEAS

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    1. Nicolas Perez-Nieves & Vincent C. H. Leung & Pier Luigi Dragotti & Dan F. M. Goodman, 2021. "Neural heterogeneity promotes robust learning," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
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    More about this item

    Keywords

    Heterogeneity; Neural; Noise; Delay; Spike;
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