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. Author manuscript; available in PMC: 2014 Apr 14.
Published in final edited form as: Physiol Behav. 2013 Jan 17;0:206–212. doi: 10.1016/j.physbeh.2013.01.008

Fig. 2.

Fig. 2

Sex differences in UR prevalence, period, robustness and amplitude. Percent hamsters of each sex exhibiting URs in SDs (filled black symbols) and LDs (open white symbols) (A). Mean±SEM period (τ′) (B), robustness (C) and amplitude (D) of the dark-phase general locomotor activity waveform. The shaded symbols at week 40 represent values of hamsters transferred from LDs to SDs at wk 30 (SD10). *P≤0.05 vs LD; **P≤0.005 vs. LD; # P≤0.05 vs. male value within same photoperiod.