Fig. 5.

The effect of 2 weeks of CMS on serotonergic balance in the HIP of stressed and non-stressed rats. a Represents hippocampal 5-HT concentrations in all groups of animals; b 2 weeks of CMS was associated with a significant decrease in the hippocampal 5-HIAA levels in anhedonic and resilient animals, *p < 0.05 vs. control (n = 4/group); c anhedonic animals exhibited a significantly decreased 5-HT/5-HIAA ratio in the HIP compared to control and resilient rats (n = 4/group), **p < 0.01 vs. control and #p < 0.05 vs. resilient group