Mean sessions to reach criterion on each of the three training stages for the three experimental groups and controls
| Training phase 1 | Training phase 2 | Main task | |
|---|---|---|---|
| CON | 13.3 | 12.9 | 16.0 |
| AMG | 19.6 | 11.3 | 16.3 |
| PL | 14.6 | 14.6 | 15.0 |
| PFo | 17.0 | 12.8 | 16.4 |
| Mean | 15.4 | 12.3 | 15.8 |
Values for training phases 1 and 2 reflect the mean of tap and hold sessions. CON, Unoperated control monkeys; AMG, monkeys with bilateral excitotoxic lesions of the amygdala; PL, monkeys with bilateral aspiration lesions of the prelimbic cortex; PFo, monkeys with bilateral excitotoxic lesions of the orbital prefrontal cortex.