摘要
The Morris-Lecar model is a neuronal model designed to replicate the oscillatory activity of barnacle giant muscle fibers.This work presents a three-dimensional Morris-Lecar model with a novel fast-slow structure.The model introduces a current containing slow variables,thereby forming a new fast-slow structure with the membrane potential.Numerical results reveal the existence of two independent unstable foci and complex dynamical behaviors that include period-doubling bifurcations and spiking/bursting activities.Two types of bifurcation mechanisms for bursting activities are elucidated through theoretical analysis based on four typical bursting activities.Finally,a digital neuronal circuit was developed based on FPGA,and experimental results show good consistency with numerical results.
基金
supported by the National Natural Science Foundation of China(Grant Nos.62271088,62201094)
the Joint Guidance Project of the Natural Science Foundation of Heilongjiang Province(Grant No.LH2020F022)
the Scientific Research Foundation of Jiangsu Provincial Education Department of China(Grant No.22KJB510001).
