Fig. 4.
TeA Arc+ neurons have fewer spines compared to Arc− neurons after cued or uncued shock presentations. (A) Dashed lines show TeA location. Neurons were filled in layer 2. Thin spine density (B) and mushroom spine density (D) is lower in Arc+ neurons in cued and shock-only conditions. Circles represent averages for individual animals, bars represent group averages. Stars represent significance level of Sidak’s multiple comparison test after ANOVA. (C) Filled layer 2 TeA neurons. *p < 0.05.