Table 2.
Summary of EEG states with sample sizes.
| EEG state | Description | Sample size | |
|---|---|---|---|
| Number of observations | Number of subjects | ||
| 1 | Alpha with blinks/eye movements ± muscle/beta | 13 | 8 |
| 2 | Alpha with muscle/beta | 16 | 6 |
| 3 | Alpha with body movement/wander and muscle/beta | 105 | 36 |
| 4 | Alpha with body movement/wander | 48 | 11 |
| 5 | Alpha only | 11 | 5 |
| 6 | Alpha with theta | 14 | 4 |
| 7 | Alpha with theta and occasional delta (≤ 25% delta)* | 444 | 31 |
| 8 | Alpha with theta and moderate delta (25 ≥ 75% delta)* | 999 | 40 |
| 9 | Dominated by delta and alpha ± theta (> 75% delta)* | 159 | 24 |
| 10 | Burst suppression | 61 | 14 |
*This percentage is based on the time occupied by the delta activity.