Fig 6. Corticosterone levels in feces with and without alcohol access.

Fecal corticosterone was measured directly after three days of alcohol access (EtOH+) and after four days of water only (EtOH-). Data are presented as group medians with interquartile range (n = 10/group). *p<0.05, **<0.01, ***<0.001 (post hoc Mann-Whitney U-test), +p<0.05, ++<0.01 (post hoc Wilcoxon’s test).