Behaviors simulated.

A: Biased excitability with polarity models: [6], [9], [12].B: LEGI-biased excitability without polarity models: [10]; other biased ENs [11], [76];C: Excitability-only models: [7], [15], [17]; reviewed in Ref. [7].D: LEGI models: [43], [77]–[79].E: Polarization only: [45], [80]; others reviewed in Ref. [3], [4].F: Stochastic with external bias models: [27], [81].G: Stochastic with persistence [27], [30], [82] (*these are models that fit statistics, rather than signaling models).