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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Behav Brain Res. 2012 May 28;233(2):345–350. doi: 10.1016/j.bbr.2012.05.033

Figure 2.

Figure 2

SD exposure enhances fear memory in Peromyscus leucopus. A) LD and SD mice did not differ in freezing responses during acquisition in the auditory-cued fear conditioning test. Both LD and SD mice increased freezing across acquisition. B) Freezing responses to tone 24 h after acquisition are increased in SD mice compared to LD mice (p < 0.05 repeated measures ANOVA). Follow up within-trial comparisons show that SD mice froze significantly more than LD counterparts during the initial tone presentation and during tone 5. * p < 0.05 Student’s t test.