Figure 2
From: Selective and contagious prosocial resource donation in capuchin monkeys, chimpanzees and humans
Prosocial responses before and after social experience.
The Y-axis represents the proportion of MPR pulled by the Proposer for the Receiver and the bars are marginal mean and standard deviation estimated from the statistical model. Graphs column 1, MPR for Proposer; column 2: LPR for Proposer. Before Social Experience (BSE) = prosocial response before exposure to the prosocial model; After Social Experience (ASE) = prosocial response after experience of a prosocial other. Blue chart bars = significantly different to BSE condition. Green-framed graphs indicate a significant increase in prosocial response (ASE > BSE). Statistically significant differences are indicated by stars, with statistics on the right. Other conventions as for Fig. 1. Drawings by Jason Zampol.
