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Description of the positive criteria met by msP and Wistar rats within the 1crit and 2crit groups.
| Persistence to response | Motivation | Resistance to punishment | ||
| 1 crit | Wistar | 4 | 3 | 6 |
| msP | 1 | 5 | 2 | |
| Persistence to response and Motivation | Persistence to response and Resistance to punishment | Motivation and Resistance to punishment | ||
| 2 crit | Wistar | 1 | 1 | 1 |
| msP | 6 | 1 | 2 |
