Overview of c-Fos expression following open arm (OA) exposure in HAB, NAB and LAB mice.

Values are numbers of c-Fos positive cells/0.01 mm2. (total number of c-Fos positive cells was quantified in the CA1 and CA3 region and the dentate gyrus of the hippocampus). 2-way ANOVA analysis results for line x stress interaction are given in the right column (brain areas showing significant interaction are shown in bold). 2-way ANOVA analysis results for the factor stress are indicated by # P<0.05, ## P<0.01 basal versus OA stress groups; basal groups: n = 5, OA-groups: n = 8–9;