Note: Depiction of the behavioral differences among adopted young adults (portrayed by the black bars) and those reared by their biological mothers (portrayed by the white bars). Compared to subjects that were reared by their biological mothers, adopted subjects spent more time in behavioral withdrawal (F(1,58)=9.80, p=.003; Panel 2A), stereotypies (F(1,58)=10.20, p=.002; Panel 2B), social contact with others (F(1,58)=8.12, p=.006; Panel 2C), and they approached the intruder more often (F(1,58)=11.81, p=.001; Panel 2D), exhibiting a shorter latency to approach the intruder (F(1,58)=4.64, p=.04; Panel 2E). Error bars represent standard error of the mean.