Fig. 6

Probability distribution of the phase difference between a pair of E-I oscillators as a function of extrinsic noise strength σ with g, h given by Figure 4. Solid curves are based on analytical calculations, whereas black (gray) filled circles correspond to stochastic simulations of the phase-reduced (planar) Langevin equations. (a)$N={10}^5$, $\sigma =0.01$. The curve is very flat, showing little synchronization. (b)$N={10}^5$, $\sigma =0.08$. Increasing σ causes the curve to have a much sharper peak and much more synchronization.