Fig. 2.

Evolution in model 2. (A−C) Equilibrium distribution of priors α (Lower) and timecourse dynamics (Upper) for the mean of the population’s prior (α, solid lines) and expected use of ordering $\text{S}\to \text{X}\hspace{0.17em}\text{Y}$ (p, dashed lines), in acultural (A), and cultural (B, MAP learners; C, sample learners) populations. (D) Results of 300 agent-based simulations of the model (100 acultural, 100 MAP, 100 Sample) in populations of 100 learners after 1,000 generations: Points show the mean of the population’s prior (α) and expected use of ordering $\text{S}\to \text{X}\hspace{0.17em}\text{Y}$ (p) in the final population;$n=100,\hspace{0.17em}\mu =0.001,\hspace{0.17em}N=20,\hspace{0.17em}\lambda =20$.