| Typicality: | 0.441 |
| Saliency: | 0.447 |
| in the brain imaging study | 10 | location |
| to use electroencephalography | 7 | purpose |
| to monitor the activity | 3 | purpose |
| researcher → use → positron emission tomography | 51 |
| researcher → use → positron-emission tomography | 3 |
| researcher → use → a positron emission tomography | 3 |
| researcher → use → positron emission tomography imaging | 3 |
| negative | neutral | positive |
| 0.123 | 0.786 | 0.091 |
| Raw frequency | 60 |
| Normalized frequency | 0.447 |
| Modifier score | 0.500 |
| Perplexity | 18.497 |