Table 1.
Minutes of sleep during each sleep stage, TST, and wake for socially enriched extraverts, socially enriched introverts, socially impoverished extraverts, and socially impoverished introverts during baseline and recovery nights
| Variable | Socially Enriched |
Socially Impoverished |
||||||
|---|---|---|---|---|---|---|---|---|
| Extravert |
Introvert |
Extravert |
Introvert |
|||||
| Baseline | Recovery | Baseline | Recovery | Baseline | Recovery | Baseline | Recovery | |
| TST | 438 ± 7 | 623 ± 6 | 434 ± 6 | 630 ± 7 | 436 ± 7 | 636 ± 6 | 448 ± 6 | 635 ± 6 |
| Sleep stage | ||||||||
| 1 | 40 ± 6 (9.1) | 40 ± 5 (6.4) | 37 ± 5 (8.5) | 41 ± 6 (6.5) | 34 ± 6 (7.8) | 26 ± 5 (4.1) | 31 ± 5 (6.9) | 28 ± 5 (4.4) |
| 2 | 236 ± 13 (53.9) | 321 ± 12 (51.5) | 224 ± 11 (51.6) | 349 ± 12 (55.4) | 234 ± 12 (53.7) | 337 ± 12 (53.0) | 226 ± 11 (50.5) | 328 ± 11 (51.7) |
| SWS | 86 ± 24 (19.6) | 127 ± 20 (20.4) | 91 ± 20 (21.0) | 112 ± 22 (17.8) | 86 ± 21 (19.7) | 172 ± 20 (27.0) | 88 ± 20 (19.6) | 190 ± 20 (29.9) |
| REM | 84 ± 12 (19.2) | 137 ± 10 (22.0) | 89 ± 10 (20.5) | 127 ± 11 (20.2) | 88 ± 11 (20.2) | 134 ± 10 (21.1) | 104 ± 10 (23.2) | 151 ± 10 (23.8) |
| Wake | 33 ± 7 (7.5) | 32 ± 6 (5.1) | 41 ± 5 (9.5) | 24 ± 6 (3.8) | 27 ± 6 (6.2) | 21 ± 6 (3.3) | 29 ± 6 (6.5) | 21 ± 5 (3.3) |
Data are presented as mean ± SEM with sleep-stage values as percentages of total sleep time (TST) in parentheses; SWS refers to slow-wave sleep; REM, rapid eye movement sleep.