(a,b) Synchronization results when the gain on flow is zero (κ0 = 0). (c,d) Gain on neighbors is zero (κ0 = 1). (a,c) ED and (b,d) ID, over all group sizes, N and noise values. Noise values are as follows: (a,b) σ = 102 and (c,d) σ0 = 102 (yellow online, grey in print), (a,b) σ = 100 and (c,d) σ0 = 100 (orange online, white in print), and (a,b) σ = 10−2 and (c,d) σ0 = 10−2 (blue online, black in print). Length of bars represent the upper and lower quartiles.