Table 2.
Concurrent discrimination/reinforcer devaluation cognitive scores.
| Sex | Time at test | 4 years | 6 years | ||||
|---|---|---|---|---|---|---|---|
| Cases | Acq | Object difference | Food difference | Retention | Object difference | Food difference | |
| Neo-C | |||||||
| ♀ | Neo-C-1 | 226 | 15 | 28 | 53 | 21 | 26 |
| ♂ | Neo-C-2 | 180 | 9 | 18 | 0 | 23 | 24 |
| ♀ | Neo-C-3 | 221 | 16 | 30 | 98 | 19 | 29 |
| ♂ | Neo-C-4 | 301 | 4 | 23 | 93 | 22 | 30 |
| X | 232 | 11 | 24.8 | 61 | 21.3 | 27.3 | |
| Neo-Oasp | |||||||
| ♀ | Neo-Oasp-1 | 479 | 14 | 26 | 119 | 0 | 20 |
| ♂ | Neo-Oasp-2 | 193 | −1 | 13 | 22 | −5 | 25 |
| ♀ | Neo-Oasp-3 | 588 | 9 | 26 | 253 | −4 | 21.5 |
| ♂ | Neo-Oasp-4 | 528 | 7 | 23 | 47 | 4 | 19 |
| ♀ | Neo-Oasp-5 | 200 | 8 | 17 | 32 | 4 | 11 |
| X | 397.6 | 7.4 | 21 | 94.6 | −0.2 | 19.3 | |
Scores are total number of errors made before criterion days for the acquisition (Acq) of the concurrent discrimination task at 4 years of age and retention of the task 2 years later (6 years). Object difference scores and food difference scores were obtained in the devaluation probe sessions at 4 and 6 years of age. Neo-C, animals with neonatal sham-operations and Neo-Oasp, animals with neonatal OFC area 11/13 lesions. Note that Case Neo-C2 that had been tested in the Devaluation task was not tested on the AX−/BX+ task and was replaced by case Neo-C-5 that had a similar training history.