Table 1.
The percentage time spent in wakefulness, non-rapid eye movement(NREM) sleep and rapid eye movement (REM) sleep for Group 1: paired followed by socially isolation and Group 2: isolation followed by social paring. Data are expressed mean ± SEM.
| Group 1: Social Isolation | Group 2: Social paring | ||||||
|---|---|---|---|---|---|---|---|
| Paired (Day 10) | Socially isolated (Day 47) | Significance | Isolated (Day 10) | Socially paired (Day 47) | Significance | ||
| State | Time of day | Percentage time spent | Percentage time spent | ||||
| Wakefulness | 7:00 AM – 9:00 AM | 96.30 ±2.50 | 97.34 ±0.89 | 95.30 ±3.76 | 96.34 ±0.83 | ||
| 9:00 AM – 11.00 AM | 95.08 ±0.91 | 96.86 ±0.83 | 97.08 ±0.97 | 97.86 ±0.96 | |||
| 11:00 AM – 1:00 PM | 93.60 ±1.95 | 97.06 ±0.89 | 94.6 ±2.38 | 97.76 ±1.74 | |||
| 1:00 PM – 3.00 PM | 30.70 ±4.07 | 43.62 ±4.72 | 32.7 ±2.37 | 45.62 ±5.3 | |||
| 3:00 PM – 5.00 PM | 37.68 ±3.74 | 32.80 ±6.02 | 35.68 ±6.38 | 42.8 ±5.12 | |||
| 5:00 PM – 7.00 PM | 29.92 ±3.11 | 43.32 ±6.39 | 31.92 ±5.5 | 43.32 ±9.45 | |||
| 7:00 PM – 9.00 PM | 67.06 ±10.92 | 74.30 ±4.49 | 64.06 ±8.23 | 76.3 ±6.61 | |||
| 9:00 PM – 11.00 PM | 47.10 ±4.87 | 62.24 ±4.35 | F=5.37, p<0.049 | 45.1 ±6.81 | 65.24 ±5.56 | F=6.47, p<0.03 | |
| 11:00 PM – 1.00 AM | 52.38 ±1.61 | 64.56 ±3.04 | F=12.48, p<0.008 | 50.38 ±2.74 | 66.56 ±4.17 | F=26.74, p<0.008 | |
| 1:00 AM – 3.00 AM | 48.78 ±3.62 | 52.94 ±2.76 | 49.78 ±7.92 | 62.94 ±3.91 | |||
| 3:00 AM – 5.00 AM | 49.94 ±4.33 | 65.86 ±5.63 | 50.94 ±4.64 | 55.86 ±3.44 | |||
| 5:00 AM – 7.00 AM | 77.34 ±7.91 | 70.14 ±8.81 | 75.34 ±5.3 | 70.14 ±4.35 | |||
| NREM sleep | 7:00 AM – 9.00 AM | 3.72 ±2.50 | 2.70 ±0.87 | 4.7 ±1.85 | 3.66 ±0.86 | ||
| 9:00 AM – 11.00 AM | 4.92 ±0.91 | 3.48 ±0.93 | 2.92 ±1.29 | 2.14 ±1.56 | |||
| 11:00 AM – 1.00 PM | 6.40 ±1.95 | 3.62 ±1.38 | 5.40 ±1.38 | 2.24 ±1.17 | |||
| 1:00 PM – 3.00 PM | 59.46 ±3.91 | 48.14 ±4.46 | 55.44 ±3.01 | 44.98 ±3.91 | |||
| 3:00 PM – 5.00 PM | 52.88 ±3.02 | 54.11 ±4.43 | 54.86 ±3.98 | 44.92 ±3.43 | |||
| 5:00 PM – 7.00 PM | 59.16 ±2.07 | 46.36 ±5.96 | 58.06 ±1.58 | 45.28 ±4.35 | |||
| 7:00 PM – 9.00 PM | 27.62 ±8.80 | 22.82 ±4.36 | 31.6 ±5.7 | 20.68 ±5.87 | |||
| 9:00 PM – 11.00 PM | 44.46 ±4.43 | 30.88 ±3.69 | F=5.60, p<0.045 | 46.98 ±3.37 | 28.64 ±8.71 | F=5.85, p<0.042 | |
| 11:00 PM – 1.00 AM | 43.58 ±1.52 | 31.08 ±4.00 | F=8.49, p<0.019 | 44.46 ±8.46 | 26.48 ±5.86 | F=7.49, p<0.019 | |
| 1:00 AM – 3.00 AM | 44.14 ±2.15 | 38.16 ±2.17 | 43.16 ±5.31 | 29.16 ±5.93 | F=5.90, p<0.041 | ||
| 3:00 AM – 5.00 AM | 42.54 ±4.02 | 27.24 ±4.25 | F=6.82, p<0.031 | 41.52 ±1.5 | 36.28 ±4.25 | ||
| 5:00 AM – 7.00 AM | 20.76 ±6.88 | 25.24 ±6.90 | 20.78 ±2.51 | 26.32 ±4.73 | |||
| REM sleep | 7:00 AM – 9.00 AM | 0 | 0 | 0 | 0 | ||
| 9:00 AM – 11.00 AM | 0 | 0 | 0 | 0 | |||
| 11:00 AM – 1.00 PM | 0 | 0 | 0 | 0 | |||
| 1:00 PM – 3.00 PM | 9.86 ±1.01 | 8.40 ±0.45 | 11.86 ±1.3 | 9.4 ±0.93 | |||
| 3:00 PM – 5.00 PM | 9.46 ±1.53 | 13.28 ±2.57 | 9.46 ±1.57 | 12.28 ±1.25 | |||
| 5:00 PM – 7.00 PM | 10.92 ±1.20 | 10.40 ±2.24 | 10.02 ±0.87 | 11.4 ±1.73 | |||
| 7:00 PM – 9.00 PM | 5.34 ±2.19 | 3.02 ±0.37 | 4.34 ±1.71 | 3.02 ±1.51 | |||
| 9:00 PM – 11.00 PM | 8.42 ±1.32 | 7.12 ±1.02 | 7.92 ±1.86 | 6.12 ±1.42 | |||
| 11:00 PM – 1.00 AM | 4.16 ±0.17 | 5.96 ±0.96 | 5.16 ±0.91 | 6.96 ±1.07 | |||
| 1:00 AM – 3.00 AM | 7.06 ±1.86 | 8.70 ±0.94 | 7.06 ±1.43 | 7.9 ±1.37 | |||
| 3:00 AM – 5.00 AM | 7.54 ±0.36 | 6.86 ±1.40 | 7.54 ±1.35 | 7.86 ±1.79 | |||
| 5:00 AM – 7.00 AM | 1.88 ±1.08 | 4.84 ±2.06 | 3.88 ±0.87 | 3.54 ±1.4 | |||