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. Author manuscript; available in PMC: 2013 Apr 15.
Published in final edited form as: Neurobiol Learn Mem. 2006 Mar 10;86(1):35–46. doi: 10.1016/j.nlm.2006.01.004

Fig. 1.

Fig. 1

Percentage of time spent exploring the novel object during testing of intact, cycling rats. Rats in behavioral estrus (n = 6) spent a significantly higher percentage of time exploring the novel object than did estrous (n = 7) or diestrous rats (n = 5; **). Estrous rats spent a significantly higher percentage of time exploring the novel object than did diestrous rats (*).