Fig. 18

Dynamics of the network with a quadratic activation function. a Raster plot of network firing for simulation with $N=800$, $h=\frac{wN}{27}$, $\alpha =\frac{8wN}{27}$, $w=0.01$. b For the same simulation this plot shows the number of active neurons (A) at each simulation step. The distribution of avalanches (c) and positive avalanches only (d)—as described in the main text—pooled from 20 simulations of 1000 seconds in length. The red lines indicate linear fits, i.e. fitted power laws, both with exponents of 1.48