Figure 2.
Duration of immobility (passive/maladaptive behavioral response) during a 5-minute tail suspension test (Panel A) and a 5-minute forced swim test (Panel B). Tests were performed following 10 days of chronic mild stress. Groups are isolated male (n=7), isolated female (n=7), paired male (n=6) and paired female prairie voles (n=6). Data are mean + standard error of the mean, SEM. *P < 0.05 vs. paired groups (main effect of housing, mixed-design ANOVA). Note: because active and passive behavioral responses were mutually-exclusive and exhaustive behavioral categories, active coping behaviors comprised the remainder of the 5-minute period for each test.