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. Author manuscript; available in PMC: 2014 Feb 15.
Published in final edited form as: Biol Psychiatry. 2012 Sep 12;73(4):345–352. doi: 10.1016/j.biopsych.2012.08.006

Figure 4.

Figure 4

Fear renewal following four sessions of extinction. (A) Mean (±sem) percent freezing during 180 s baseline period preceding tone onset. (B) Mean (±sem) percent freezing to four, 30 sec tone presentations (ITI: 60 sec) in either the Same or Shifted context at test. Saline controls showed significant renewal (***p<.001), which was blocked by pre-extinction scopolamine (n.s., p>.05). Scopolamine-extinguished rats showed a significant decrease in freezing in the shifted condition (#p<.05).