Figure 5.

Number of days required to train. (A) Descriptive statistics related to the number of days required to be trained. (B) Relationship between human-directed submissive–affiliative reactivity during indoor acclimation observations and the number of days required for training. The reactivity score (x axis) reflects the total number of behaviors generated during the observations. Error bars indicate the SEM for the 8 macaques that evidenced no human-directed affective reactivity. Two animals each generated 1 submissive–affiliative reaction toward humans but required the same number of days to train, thus there are no error bars on that point.