| in areas with high noise levels | 10 | location |
| severely | 6 | degree |
| by sleep deprivation | 5 | cause |
| brain → be → impaired | 42 |
| brain → become → impaired | 12 |
| brain → result in → impaired function | 5 |
| negative | neutral | positive |
| 0.745 | 0.196 | 0.059 |
| Raw frequency | 59 |
| Normalized frequency | 0.478 |
| Modifier score | 0.500 |
| Perplexity | 362.617 |