Fig. 1.
The transition of MaRS among three mimicry modes: enacted, expected, and excluded. Each transition is conditioned upon the detection of up-to-date similarity levels by the passive similarity index psp, the reactive similarity index psr, or both. The criterion for sufficient similarity is the similarity threshold ps*, which is derived from the game’s payoff matrix, whereby ps* = (T − S)/(T – S + R − P). “psr = ?” indicates that the extent of reactive similarity has not yet been determined. Note that the transitions start at the third interaction, at which point a mimicry type has already been determined and MaRS considers its next move.