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. Author manuscript; available in PMC: 2014 Aug 19.
Published in final edited form as: Stress. 2009 May;12(3):250–258. doi: 10.1080/10253890802367265

Figure 1.

Figure 1

COP for control and PNS rat pups. (A) Time spent by the pups conditioned with + CS (lemon-scented mother) or with the neutral CS (lemon-scented cotton ball) in the two portions of the COP apparatus (conditioned-lemon scent; no stimulus-no scent). (B) Number of entries made by pups conditioned with + CS or with the neutral CS into the two portions of the COP apparatus. N = 34 control pups, and N = 36 PNS pups. Data are group means + SEM. Post hoc pairwise comparisons were conducted within subjects between CS time/entries and neutral time/entries. *p < 0.05, **p < 0.01, and ***p < 0.001.