| AC | Aged controls |
| AD | Alzheimer’s disease |
| AUC | Area under the receiver operating curve |
| EEG | Electroencephalogram |
| EMG | Electromyogram |
| EoD | Entropy of difference |
| MCI | Mild cognitive impairment |
| NREM | Non-rapid eye movement |
| NREMS | Non-rapid eye movement sleep |
| PeEn | Permutation entropy |
| REM | Rapid eye movement |
| REMS | Rapid eye movement sleep |
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