Figure 3: Illustration of the activity in the network illustrated in Fig. 1. Traces of simulated membrane potentials for 90 neurons are shown. The top 81 traces are for the excitatory neurons and the bottom 9 traces are for the inhibitory neurons. Four selected neurons are continuously activated by random Poisson excitatory input, with $A_n=0.0066 mA$ and $\lambda =0.00003$.