The Effect of Different Photoperiods in Circadian Rhythms of Per3 Knockout Mice
Figure 3
A representative double-plot actogram of one mPer3 −/− mouse. Mice were entrained to the following light : dark conditions : 12L : 12D for 5 days; 8L : 16D for 19 days; constant dark (DD) for 4 days; 12L : 12D for 14 days; 16L : 8D for 22 days and DD for 9 days. The red rectangle depicts the transition from 12L : 12D to 16L : 8D.