| highly | 5 | degree |
| no longer | 3 | temporal |
| with chronic pain patients | 3 | other |
| brain → be → effective | 21 |
| brain → be → most effective | 4 |
| brain → improve → effectiveness | 3 |
| negative | neutral | positive |
| 0.150 | 0.339 | 0.511 |
| Raw frequency | 28 |
| Normalized frequency | 0.358 |
| Modifier score | 0.500 |
| Perplexity | 463.212 |