Figure 5

Effect of varying external current input parameters, such as the recruited input population size (σ_pop), stimulus duration (β), and input stimulus amplitude (I₀) on the bursting characteristics of an AdEx neuron at u_n = 2.5 mm (neuron nr. 100) in the SC output layer [τ_q = 30, W ^FS = 3]. (a,b) Show the membrane potential, V(t), and a dot-display of the individual spikes (top), for three input current population sizes around T = 15 deg: (a1) σ_pop = 1.0 mm, (a2), σ_pop = 0.5 mm (the default stimulation input), (a3) σ_pop = 0.1 mm, and for three stimulus duration/intensity values: (b1) β = 0.026/I₀ = 2.46, (b2) β = 0.024/I₀ = 2.1, (b3) β = 0.020/I₀ = 1.4. (c) Corresponding spike density functions for varying the external stimulation population size, and (d) for varying the external stimulus duration/intensity parameters. Line colors correspond to the traces in (a,b).