Table 1

Effects of transition from light-dark to constant light on properties of Murine wheel-running rhythms

Circadian Parameter
Light-Dark (LD)
Constant Light (LL)

tau (h)
24.08 ± 0.03 h
24.84 ± 0.04 h*
Percentage of Variance Explained by the Dominant Rhythmic Component (PV%)
66.6 ± 1.47
26.6 ± 0.98***
Alpha Duration (h)
11.8 ± 0.15
13.1 ± 0.27*
Motor Activity (RPM)
19.7 ± 1.19
5.3 ± 0.51***

***P < 0.001; *P < 0.05

Marston et al. Molecular Brain 2008 1:19   doi:10.1186/1756-6606-1-19