Sleep data
| Experiment 1 | Experiment 2 | |||
|---|---|---|---|---|
| Expected | Unexpected | Expected | Unexpected | |
| Total sleep time | 446.79 ± 6.40 | 445.87 ± 10.54 | 442.17 ± 6.34 | 454.40 ± 5.32 |
| Wake | 0.64 ± 0.27 | 1.67 ± 0.88 | 1.82 ± 0.71 | 0.52 ± 0.15 |
| Stage 1 | 6.19 ± 0.98 | 5.37 ± 0.71 | 6.07 ± 1.95 | 6.36 ± 0.83 |
| Stage 2 | 49.73 ± 1.99 | 53.41 ± 2.38 | 49.66 ± 2.99 | 55.98 ± 2.61 |
| Stage 3 | 11.15 ± 1.06 | 11.66 ± 0.65 | 9.79 ± 0.96 | 9.69 ± 1.44 |
| Stage 4 | 8.20 ± 1.43 | 4.07 ± 1.16* | 11.72 ± 1.81 | 5.11 ± 1.41** |
| SWS | 19.35 ± 1.64 | 15.73 ± 1.55 | 21.51 ± 2.49 | 14.80 ± 2.13 |
| REM | 22.86 ± 1.02 | 22.84 ± 1.60 | 20.00 ± 1.89 | 20.84 ± 1.11 |
| SWS latency | 18.68 ± 2.10 | 20.03 ± 1.32 | 16.06 ± 1.55 | 18.15 ± 2.43 |
| REM latency | 88.64 ± 9.38 | 77.13 ± 4.57 | 81.50 ± 5.38 | 90.45 ± 10.40 |
Data for mean (± SEM) total sleep time, time spent awake, stage 1 sleep, stage 2 sleep, stage 3 sleep, stage 4 sleep, slow wave sleep (the sum of stage 3 and 4 sleep) and REM sleep given in percentage of total sleep time, and latency of the first period of SWS and REM sleep (with reference to sleep onset) are shown;
↵* p < 0.05,
↵** p < 0.01, for differences between groups.