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Instrumental response rates for alcohol prior to PIT testing in Experiment 3.
| Group | Lever presses | Earned alcohol | g/kg |
|---|---|---|---|
| 2-week | 97.8 (14.4) | 3.0 (0.39) ml | 0.51 (0.09) |
| 8-week | 106.6 (8.9) | 3.6 (0.38) ml | 0.68 (0.07) |
Mean (SEM) lever-press responses, volume of alcohol consumed, and gram/kilogram ethanol levels for the final 3 days of instrumental training.
