Table 2.
12-h Vigilance states.
| Waking | NREMs | REMs | ||||
|---|---|---|---|---|---|---|
| Light-Dark | L1 | D1 | L1 | D1 | L1 | D1 |
| Young RW | 3.85 (0.21) | 8.92 (0.18) ∗ | 6.81 (0.2) | 2.78 (0.2) ∗ | 1.34 (0.05) | 0.3 (0.02) |
| Young C | 3.8 (0.33) | 7.62 (0.25) | 6.92 (0.23) | 4.01 (0.22) | 1.28 (0.09) | 0.37 (0.04) |
| 18 months RW | 3.96 (0.27) | 7.02 (0.36) | 6.79 (0.3) | 4.65 (0.35) | 1.25 (0.07) | 0.34 (0.03) |
| 18 months C | 4.23 (0.2) | 7.08 (0.38) | 6.46 (0.23) | 4.41 (0.36) | 1.31 (0.07) | 0.52 (0.05) |
| 24 months RW | 4.02 (0.15) | 6.9 (0.4) | 7.03 (0.17) | 4.7 (0.35) | 0.95 (0.03) ∗ | 0.39 (0.07) |
| 24 months C | 3.87 (0.22) | 6.96 (0.33) | 6.87 (0.19) | 4.64 (0.31) | 1.26 (0.06)∗ | 0.39 (0.04) |
Mean values (±SEM) in hours of Waking, NREM and REM sleep for 12-h light (L1) and dark (D1) of the baseline (BL) day. Black asterisks indicate significant difference between the group and all the others, and gray asterisk between the same age group (∗p ≤ 0.05).