Fig. 6.

(A) Average individual performance increases with individual tendency to copy his or her neighbors’ positions (size of circle indicates the number of games played by a given subject, showing the same trend for frequent and infrequent participants). Larger circles indicate more games, and smaller circles indicate fewer games. (B) Proportion of players copying each other on any given round was associated with diminished probability of discovering the main peak of the fitness landscape on the subsequent round.