Fig. 4From: Prior observation of fear learning enhances subsequent self-experienced fear learning with an overlapping neuronal ensemble in the dorsal hippocampusObservation of fear conditioning enhances the percentage of GFP+ cells in the hippocampal CA1 and CA3 in a doxycycline-dependent manner. a Representative images of GFP immunostaining in the CA1. The scale bar represents 30 μm. b Percentage of GFP+ cells in the CA1 and CA3. Tukey’s test after two-way ANOVA, group effect: F2, 20 = 41.95, P < 0.0001. **P < 0.05, **P < 0.01 vs. Dox ON group. Values are reported as mean ± SEMBack to article page