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. 2016 Apr 1;11(8):1236–1244. doi: 10.1093/scan/nsw045

Fig. 2.

Fig. 2.

Participants’ investment decisions in their role as predator and prey. (A) Distribution of investment decisions by prey, broken down by treatment and compared with predicted values based on standard rational choice theory (game theory expects no prey investments ≥7). (B) Distribution of investment decisions made by predators, broken down by treatment and compared with predicted values based on standard rational choice theory (game-theory expects no investments ≥7). (C) Investment as a function of treatment and role (displayed Mean ± SE). (D) Attack (X,Y > 0) as a function of treatment and role (range 0.0–1.0 corresponding to 0–40 attack decisions; displayed mean ± SE; * P ≤ 0.05; ** P ≤ 0.005).