“…Neuron, as an essential element of neural network, can exhibit diverse electrical activities in response to the externally imposed stimuli [1][2][3]. To imitate the biological neuronal dynamics, different mathematical neuron models were presented, including the Hodgkin-Huxley model [4][5][6], two-dimensional (2D) and three-dimensional (3D) Hindmarsh-Rose (HR) models [7,8], memristive HR model with threshold electromagnetic induction [9], fractional-order HR model [10], modified Izhikevich model [11], Morris-Lecar model [12,13], FitzHugh-Nagumo photosensitive model [14], and excitable map-based model [15]. Besides, to develop brain-like hardware devices, different electronic neurons were also developed [16][17][18].…”