Fig. 8: Signal Propagation and the critical state.
From: A hierarchy of time constants and reliable signal propagation in the marmoset cerebral cortex
a Illustration of a typical area (PG)'s response as a function of the slope of the composite gradient of excitability. b, c Impact of global excitatory connectivity (μEE) on signal propagation and integration, where μEE is normalized to its critical value -- the maximum at which the system retains stability. Line-types indicate different μIE values: 49.81, 37.36, 24.91 pA/Hz for strong (solid line), middle (dash line), weak (dot line) μIE, respectively. Gray shaded area: the parameter region where exists the trade-off between signal propagation and integration. b Effect of μEE on signal propagation, quantified by the maximum activity in area PG's response. c Effect of μEE on signal integration, quantified by Inverse Participation Ratio (IPR).
