Performance on the Rat Gambling Task as an average of the last 5 sessions
| Baseline variables | Group; mean ± SEM | ||
|---|---|---|---|
| FR | Y | VR | |
| P1 percent choice | 15.6 ± 7.6 | 10.1 ± 3.0 | 6.1 ± 1.3 |
| P2 percent choice | 59.8 ± 13.7 | 55.3 ± 6.9 | 52.6 ± 11.0 |
| P3 percent choice | 12.6 ± 7.9 | 14.0 ± 4.3 | 21.0 ± 12.2 |
| P4 percent choice | 12.0 ± 7.2 | 20.6 ± 6.7 | 20.3 ± 7.5 |
| Score | 50.7 ± 19.9 | 30.8 ± 12.8 | 17.5 ± 22.1 |
FR = fixed ratio schedule; SEM = standard error of the mean; VR = variable ratio schedule of reinforcement; Y = yoked to receive unpredictable reward.