Analysis of Neurodynamics on Phase Neural Coding in the Presence of Inhibitory Neurons

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Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (12) : 1-7,17.

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Analysis of Neurodynamics on Phase Neural Coding in the Presence of Inhibitory Neurons

Yan Liu1; Rubin Wang1; Zhikang Zhang1; Xianfa Jiao1,2

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Abstract

In this paper , the phase coding in the neural network composed of neural oscillator population is studied by
the theory of the stochastic phase dynamics under the presence of inhibitory neurons. A Stochastic nonlinear phase
dynamic model is presented under coupling action of inhibitory neurons, and dynamic evolution process and
spontaneous behavior is numerically analyzed subjected to simulation according to the model. The research results
indicate that inhibitory neurons can reduce the amplitude of the average number density in excitatory neural oscillator
population, and trend of the synchronization motion of excitatory neural oscillator population can be controlled through
increasing coupling coefficient of inhibitory neurons. Firing density of population of neural oscillator and evolution of
average number density is researched through variety of the stimulation intensity.

Key words

Excitatory neural oscillator population / inhibitory neural oscillator population / the average numberdensity / the FPK equation / phase neural coding

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Yan Liu;Rubin Wang;Zhikang Zhang;Xianfa Jiao;. Analysis of Neurodynamics on Phase Neural Coding in the Presence of Inhibitory Neurons[J]. Journal of Vibration and Shock, 2010, 29(12): 1-7,17