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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Neurosci Biobehav Rev. 2008 Jun 5;32(7):1218–1227. doi: 10.1016/j.neubiorev.2008.06.001

Fig. 2. Mean ± SE duration of conditioned (C) and unconditioned (UC) fear-related behavior during contextual fear training.

Fig. 2

Averaged behavioral durations of freezing (Panel A), avoidance (Panel B), and approach (Panel C) of control rats are shown for comparative purposes to conditioned (C) and unconditioned (UC) responses. D, Mean ± SE duration of fear-related behavior exhibited by rats in the subsequent contextual test. Rats returned to the test context 48-h after training exhibited higher levels of contextual avoidance (**P<0.01) and lower levels of approach (**P<0.01) than control rats with no prior context CS – predator odor US experiences.