Social discrimination results. Decreasing ventral hippocampal excitability via hM4Di (1 mg/kg CNO) or KORD (1 mg/kg SB) improves performance (F(3, 36)=11.66, p=<0.0001, RM one-way ANOVA with Dunnett’s multiple comparisons correction). Data are represented as mean ± SEM. Each circle represents an animal (number of animals indicated in parentheses). ns p>0.05, * p<0.05, **p<0.01, ***p<0.001, ****p<0.0001.