Table 2

Effect of 6 h SD on sleep time and delta power in cry1,2+/+ and cry1,2-/- mice.

NREMS amount [min]


baseline
post-SD
difference
cry1,2+/+
264 ± 9
297 ± 15#
33 ± 8
cry1,2-/-
312 ± 9*
318 ± 9
5 ± 4*

NREMS bout duration [min]


baseline
post-SD
difference
cry1,2+/+
2.6 ± 0.1
3.3 ± 0.3#
0.7 ± 0.3
cry1,2-/-
4.2 ± 0.4*
3.7 ± 0.2
-0.4 ± 0.3*

NREMS Delta power [μV2/0.1 Hz]


baseline
post-SD
difference [%]
cry1,2+/+
407 ± 59
704 ± 125#
170 ± 14
cry1,2-/-
619 ± 67*
805 ± 40#
134 ± 8*

REMS amount [min]


baseline
post-SD
difference
cry1,2+/+
52 ± 6
63 ± 3#
11 ± 7
cry1,2-/-
53 ± 4
58 ± 1
5 ± 3

Post-hoc comparisons: * P < 0.05 vs. wild type, unpaired t-test; # P < 0.05, vs. baseline day, within same genotype, paired t-test. Delta power was calculated over the first hour after the SD (ZT6-ZT7). REMS and NREMS amount and bout duration were calculated over 12 hours (ZT6-ZT18). Differences indicate mean individual post-SD – baseline differences except for delta power which is calculated as percentage of baseline.

Wisor et al. BMC Neuroscience 2002 3:20   doi:10.1186/1471-2202-3-20