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. Author manuscript; available in PMC: 2013 Apr 6.
Published in final edited form as: Physiol Behav. 2009 Oct 3;99(2):169–174. doi: 10.1016/j.physbeh.2009.09.017

Fig. 3.

Fig. 3

Time spent in the light side of the light-dark transition task (mean in s ±S.E.M.) of aged mice administered vehicle or estradiol (E2) 1h before testing. *Indicates a significant difference from vehicle (p<0.05).