Fig. 3: Experiment 1 considers the effect of the assortative marriage parameter (m) on sign language persistence, with vertical transmission alone and with no hearing agents acquiring the sign language.
From: The effect of cultural transmission on shared sign language persistence
a Shows the proportion of signers over 50 generations with varying values of assortative marriage (m). The dark line represents the median at each time step and the shaded area represents the first and third quartiles. b Shows the proportion of signers at generation 50 with varying assortative marriage values (m). The dots represent the median at generation 50 and the line represents the first and third quartiles. Note that the colored dots at generation 50 in a correspond to the colored dots in b.
