Table 4.
Sessions per learning stage.
| Sex | Group | A+ | A+B− | AX+BX− | Combined safety learning | Extinction |
|---|---|---|---|---|---|---|
| ♀ | Neo-C-1 | 2 | 2 | 2 | 4 | 5 |
| ♀ | Neo-C-3 | 2 | 2 | 2 | 4 | 5 |
| ♂ | Neo-C-4 | 2 | 2 | 2 | 4 | 2 |
| ♀ | Neo-C-5 | 2 | 2 | 2 | 4 | 2 |
| X | 2 | 2 | 2 | 4 | 3.5 | |
| ♀ | Neo-Oasp-1 | 2 | 2 | 2 | 4 | 3 |
| ♂ | Neo-Oasp-2 | 2 | 2 | 2 | 4 | 5 |
| ♀ | Neo-Oasp-3 | 5 | 2 | 2 | 4 | 3 |
| ♂ | Neo-Oasp-4 | 5 | 2 | 2 | 4 | 2 |
| ♀ | Neo-Oasp-5 | 3 | 2 | – | – | – |
| X | 3.4 | 2 | 2 | 4 | 3.25 |
Scores are total number of sessions to reach criterion for the initial fear learning (Stage A+), the safety signal learning stages (A+B−, AX+BX−; Combined Safety Learning is the summed scores of the two safety signal learning stages), and the extinction stage. X, Group means for each stage. Note that Case Neo-Oasp-5 did not complete the task due to behavioral problems.