Network gains for the selective processing of baseline and modulation. (A) Normalized baseline gain, (green), and modulation gain, (orange), for a network with a fixed connectivity, but different strengths of recurrent synaptic couplings. Shaded regions represent mean±std. Lighter colors correspond to lower contrasts. (B) As a result of selective attenuation of the baseline, the normalized modulation-to-baseline ratio () is generally much larger than 1. The degree of recurrence of the network presented in Figures 1, 2, 3 and 4 is marked by dashed lines.