Figure 3.

Effects of intra-NAC injections on the acquisition and expression of relief memory. Depicted is the startle magnitude (arbitrary units + SEM) without and with the presence of the relief CS (light stimulus), as well as the difference between these two trial types. (A) AP-5 injected before conditioning dose-dependently blocks acquisition of relief memory. *P < 0.05 comparison with 0 nmol (Dunnett's test) after significant effects in anova. (B) AP-5 injected before testing expression of relief memory has no effects.