Table 2.
Amount of vigilance states and REM sleep per total sleep time in baseline and in undisturbed 2h periods of the 2h/2h deprivation protocol
| Circadian time (h) | NREM (%) |
REM (%) |
Waking (%) |
REM/TST (%) |
||||
|---|---|---|---|---|---|---|---|---|
| baseline | 2h/2h | baseline | 2h/2h | baseline | 2h/2h | baseline | 2h/2h | |
| CT 0-12 | 57.6 (2.4) | 69.9 (1.1)** | 8.1 (1.1) | 10.8 (1.3)** | 34.2 (2.5) | 19.1 (2.2)** | 12.3 (1.6) | 13.2 (1.3) |
| CT 12-24 | 30.3 (3.6)§§ | 60.2 (2.9)**§ | 2.1 (0.5)§§ | 9.7 (0.9)** | 69.0 (4.4)§§ | 31.5 (3.4)**§ | 5.9 (0.9)§ | 14.0 (1.3)** |
| CT 0-24 | 43.9 (2.9) | 65.1 (1.4)** | 5.1 (0.5) | 10.2 (1.0)** | 51.6 (3.2) | 25.3 (1.3)** | 10.5 (0.9) | 13.6 (1.3) |
Mean values in % (± SEM); n = 8, for 12-h intervals (CT 0-12, subjective day; CT 12-24, subjective night) and 24-h intervals (CT 0-24, the experimental day). REM/TST, REM per total sleep time. *Significant differences between corresponding intervals of baseline and deprivation protocol (2h/2h). §Comparison between subjective day (CT 0-12) and night (CT 12-24). *§P < 0.05, **§§P < 0.01, 2-tailed paired t-test