Peer rejection cues induce cardiac slowing after transition into adolescence.

The present study examined developmental and gender differences in sensitivity to peer rejection across the transition into adolescence by examining beat-by-beat heart rate responses. Children between the ages of 8 and 14 years were presented with unfamiliar faces of age-matched peers and were asked to predict whether they would be liked by the other person. Their prediction was followed by feedback indicating that the peer had accepted or...