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Efficient digital implementation of a conductance-based globus pallidus neuron and the dynamics analysis

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  • Yang, Shuangming
  • Wei, Xile
  • Deng, Bin
  • Liu, Chen
  • Li, Huiyan
  • Wang, Jiang

Abstract

Balance between biological plausibility of dynamical activities and computational efficiency is one of challenging problems in computational neuroscience and neural system engineering. This paper proposes a set of efficient methods for the hardware realization of the conductance-based neuron model with relevant dynamics, targeting reproducing the biological behaviors with low-cost implementation on digital programmable platform, which can be applied in wide range of conductance-based neuron models. Modified GP neuron models for efficient hardware implementation are presented to reproduce reliable pallidal dynamics, which decode the information of basal ganglia and regulate the movement disorder related voluntary activities. Implementation results on a field-programmable gate array (FPGA) demonstrate that the proposed techniques and models can reduce the resource cost significantly and reproduce the biological dynamics accurately. Besides, the biological behaviors with weak network coupling are explored on the proposed platform, and theoretical analysis is also made for the investigation of biological characteristics of the structured pallidal oscillator and network. The implementation techniques provide an essential step towards the large-scale neural network to explore the dynamical mechanisms in real time. Furthermore, the proposed methodology enables the FPGA-based system a powerful platform for the investigation on neurodegenerative diseases and real-time control of bio-inspired neuro-robotics.

Suggested Citation

  • Yang, Shuangming & Wei, Xile & Deng, Bin & Liu, Chen & Li, Huiyan & Wang, Jiang, 2018. "Efficient digital implementation of a conductance-based globus pallidus neuron and the dynamics analysis," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 494(C), pages 484-502.
    • Handle: RePEc:eee:phsmap:v:494:y:2018:i:c:p:484-502
    DOI: 10.1016/j.physa.2017.11.155
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    References listed on IDEAS

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