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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Behav Brain Res. 2012 Oct 13;238:279–288. doi: 10.1016/j.bbr.2012.10.003

Fig. 6.

Fig. 6

Effects of prenatal stress on fear response and extinction during a contextual fear conditioning task in male rats. (A) % time freezing, or (B) horizontal activity during habituation and training of the task. (C) % time freezing throughout extinction, or (D) extinction index for extinction days 2–5. Each bar or point represents the mean ± SEM for each test group.* represents a significant difference (p<0.05) in performance between PNS and control rats. † represents a trend toward a significant difference (p < 0.10). PNS = prenatally stressed; CON = non-stressed controls; ED = extinction day. N = 8.