Fig. 1.

A, The influence of strength of training on percent preference for the familiar food across delays.White bars indicate performance of groups given a 10 min interaction with demonstrator rats, striped barsindicate performance of groups given a 30 min interaction with demonstrator rats, and black bars indicate performance of groups given 30 min interactions with different demonstrator rats on 3 consecutive days. B, The influence of strength of training when the delays were combined. C, Percentage of preference for the familiar food across delays (strength of training combined at each delay). Error bars show SEM.