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| |
Nude
|
WT
|
p
|
|---|
|
τ (hours)
|
23.86 ± 0.03
|
23.88 ± 0.05
|
ns
|
|
α (hours)
|
8.7 ± 0.6
|
10.8 ± 1.5
|
ns
|
|
% α/τ
|
36.5 ± 2.4
|
45.4 ± 6.3
|
ns
|
|
% Area (α)
|
66.1 ± 3.5
|
79.9 ± 3.7
|
< 0.05
|
|
α/ρ
|
0.58 ± 0.06
|
0.98 ± 0.27
|
ns
|
- Free running period (τ), α (time duration of the subjective day) and ρ (time duration of the subjective night) were calculated as described in methods. τ (hours), total α length (hours), α/τ ratio expressed as percentage, (% α/τ), percentage of total activity occurring during α (% Area (α)) and the α/ρ ratio are expressed as mean ± SEM for nude (n = 9) and WT (n = 6) mice. P values correspond to Student’s t test between the two mice groups.