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The effects of neuron heterogeneity and connection mechanism in cortical networks

Author

Listed:
  • Zhao, Qingbai
  • Tang, Yiyuan
  • Feng, Hongbo
  • Li, Changjun
  • Sui, Danni

Abstract

The mammalian cortices show an specific architecture close to the optimum, represented by the high clustering, short processing steps and short wiring length. What are the key factors that influence the layout of neural connectivity networks? Here a model to investigate the conditions leading to the small-world cortical networks with minimal global wiring is presented. The essential factors in this model are the introductions of the unequal number distribution of heterogeneous neurons and two connection mechanisms, the preferential attachment to neurons with large spatial coverage (PANLSC) and distance preference. Outcomes show that the specific architecture close to the optimum can only result from the PANLSC when the number distribution of neurons with diverse spatial coverage is highly unequal. This suggests the PANLSC may be an important connection mechanism in cortical systems.

Suggested Citation

  • Zhao, Qingbai & Tang, Yiyuan & Feng, Hongbo & Li, Changjun & Sui, Danni, 2008. "The effects of neuron heterogeneity and connection mechanism in cortical networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(23), pages 5952-5957.
    • Handle: RePEc:eee:phsmap:v:387:y:2008:i:23:p:5952-5957
    DOI: 10.1016/j.physa.2008.07.002
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    Cited by:

    1. Lin, Qianjin & Wang, Jiang & Yang, Shuangming & Yi, Guosheng & Deng, Bin & Wei, Xile & Yu, Haitao, 2017. "The dynamical analysis of modified two-compartment neuron model and FPGA implementation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 484(C), pages 199-214.
    2. Tun-Wei Hsu & Changwei W Wu & Yu-Fan Cheng & Hsiu-Ling Chen & Cheng-Hsien Lu & Kuan-Hung Cho & Wei-Che Lin & Ching-Po Lin, 2012. "Impaired Small-World Network Efficiency and Dynamic Functional Distribution in Patients with Cirrhosis," PLOS ONE, Public Library of Science, vol. 7(5), pages 1-14, May.

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