为进一步探究耦合时滞对半中心振荡器(Half-Center Oscillator,HCO)放电活动模式的调控作用,基于Hindmash-Rose神经元构建了具有簇放电的DHCO(delayed HCO)模型,利用簇簇间平均相位差的计算,研究了DHCO神经系统随时滞调控的演化规律,确定了在不同参数空间下,DHCO系统所具有的同相和反相簇放电同步及其转迁过程。研究结果表明,作为中枢模式发生器的功能结构单元,DHCO神经系统可以通过时滞调控实现多种步态的生成和切换。
To further investigate the regulatory role of coupled time-delay on the modes of discharge activity in a half-center oscillator (HCO), based on the Hindmash-Rose (HR) neuronal model, the DHCO (delayed HCO) model with bursting behavior is constructed. By calculating phase difference between clusters of the bursting, dynamical evolution of the DHCO nervous system is studied with time-delay regulation. The DHCO system presents in-phase and anti-phase bursting oscillations in different parameter spaces. The synchronization transition of the bursting is determined under time-delay controlling. The results show that the DHCO model, regarded as the functional unit of the CPG (Central pattern generator) system can generate and switch multiple locomotion gaits by adjusting time-delay.
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