| Typicality: | 0.405 |
| Saliency: | 0.363 |
| in the body | 2 | location |
| serotonin → regulate → sleep cycles | 5 |
| serotonin → regulate → sleep cycle | 5 |
| serotonin → regulate → the sleep cycle | 4 |
| serotonin → be involved in → regulating the sleep/wake cycle | 4 |
| serotonin → help regulate → the body’s sleep-wake cycles | 3 |
| negative | neutral | positive |
| 0.060 | 0.662 | 0.279 |
| Raw frequency | 21 |
| Normalized frequency | 0.363 |
| Modifier score | 0.500 |
| Perplexity | 276.020 |