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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Neurobiol Learn Mem. 2018 Feb 13;150:1–12. doi: 10.1016/j.nlm.2018.02.008

Figure 3.

Figure 3

(a) Mean (±SEM) percent test freezing 24hr after immediate shock training in rats preexposed on PD24 using the single- or multiple-exposure CPFE protocol. A significant CPFE was evident using both protocols with no difference observed between single-exposure and multiple-exposure freezing and both groups were significantly elevated over Alt-Pre controls. (b) Mean (±SEM) percent expression of Egr-1 mRNA relative to HC controls following immediate shock training. Immediate shock training increased Egr-1 expression in Pre and Alt-Pre rats relative to HC controls using both the single-exposure and multiple-exposure protocols. However a learning-related increase (Pre> Alt-Pre) in the AC and IL was observed using the multiple-exposure protocol only.