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Feature space of variables that linearly separate our anesthetic state classes for both sevoflurane and sevoflurane-plus-ketamine visits.
| Domain | Features |
|---|---|
| Spectral | Mean power of slow (0.1–2 Hz) Mean power of theta (4.1–8 Hz) Mean power of low-beta (12.5–15 Hz) |
| Time | Mean instantaneous frequency Kurtosis of instantaneous frequency Hjorth mobility |
| Entropy | Permutation entropy Higuchi fractal dimension |
| Total | 8 |
