| highly | 6 | degree |
| often | 3 | degree |
| dopamine → be → addictive | 11 |
| dopamine → be associated with → addiction | 7 |
| dopamine → be implicated in → addiction | 5 |
| dopamine → be activated by → addictive drugs | 4 |
| dopamine → lead to → addiction | 3 |
| negative | neutral | positive |
| 0.374 | 0.436 | 0.190 |
| Raw frequency | 30 |
| Normalized frequency | 0.455 |
| Modifier score | 0.667 |
| Perplexity | 63.086 |