| in the body | 3 | location |
| primarily | 2 | degree |
| serotonin → be found in → the body | 7 |
| serotonin → be found in → human | 3 |
| serotonin → be found in → human body | 3 |
| serotonin → be found in → many places | 3 |
| negative | neutral | positive |
| 0.084 | 0.716 | 0.201 |
| Raw frequency | 16 |
| Normalized frequency | 0.312 |
| Modifier score | 0.500 |
| Perplexity | 32.311 |