1 23 Nonlinear Dynamics An International Journal of Nonlinear Dynamics and Chaos in Engineering Systems ISSN 0924-090X Volume 69 Number 4 Nonlinear Dyn (2012) 69:2169-2179 DOI 10.1007/s11071-012-0417-z Simulating the electric activity of FitzHugh–Nagumo neuron by using Josephson junction model Fan Li, Qirui Liu, Haiyan Guo, Yehua Zhao, Jun Tang & Jun Ma