Figure 4. Systematic assessment of the performance of different polarity network topologies in buffering back polarity.
A. Set of possible additional links (blue dashed lines) to the core topology (black lines). B. Schema of additions: one, two, or three positive or negative links. C–D. Heat map of changes to the buffering performance upon addition of direct (C) or indirect (D) links. Heat map color scale: change to the buffering between the new and the original topologies (i.e. link vs. no link). Color bar: cyan or yellow indicates decreased or increased (respectively) buffering capability compared to the core topology. Green shaded background: topologies with best overall buffering performance for both direct and indirect model implementations. Gray shaded background: topologies where the back was excessively “squeezed” into a narrow region. See also Figure S4B–C and Table S3.