Avoiding costly mistakes in groups: The evolution of error management in collective decision making
Fig 2
Outcomes of the evolutionary algorithms per group size and error cost in cooperative groups.
(A) When costs are symmetrical (i.e., error cost asymmetry = 1), no start point bias evolves at any group size. With increasing cost asymmetry, small (but not large) groups evolve a larger bias. (B) Across all error costs, larger groups evolve a higher boundary separation. (C) Across all combinations of group size and error cost, a high social drift evolves. Dots and error bars represent the mean and standard deviation, respectively, across the eight evolved populations. For exemplary evolutionary trajectories see S6 Fig.