Table 1.
Sleep characteristics during the nap after the learning task and during the nap after the nonlearning control session. stage 2 sleep, slow wave sleep, REM sleep, and TST in minutes, spindle peak frequency in Hz, and spindle density in number per 30 s
| Postlearning nap | Nonlearning control nap | |||
|---|---|---|---|---|
| M | SD | M | SD | |
| Stage 2 sleep | 31.93 | 14.64 | 25.99 | 11.40 |
| Slow wave sleep | 20.30 | 8.63 | 20.27 | 10.80 |
| REM sleep | 0.78 | 2.75 | 0.00 | 0.00 |
| TST | 63.08 | 23.74 | 55.67 | 19.85 |
| Spindle peak frequency | 14.12 | 1.07 | 14.08 | 1.10 |
| Spindle number frontal | 117.80 | 53.53 | 100.83 | 44.10 |
| Spindle number central–parietal | 100.44 | 46.37 | 79.62 | 35.87 |
| Spindle density frontal | 1.19 | 0.24 | 1.20 | 0.20 |
| Spindle density central–parietal | 1.03 | 0.24 | 0.96 | 0.24 |