Table 1.
Training data for self-administration study.
| Days to meet criteriaa | Reinforcers earnedb,c,d | Accuracy across delayse | ||
|---|---|---|---|---|
| Phase 1 | WIN | 1.0 (±0) | 60.1 (±4.3) | N/A |
| VEH | 1.0 (±0) | 62.6 (±6.5) | ||
| Phase 2 | WIN | 4.0 (±0.3) | 59.1 (±6.0) | N/A |
| VEH | 4.1 (±0.1) | 63.8 (±9.8) | ||
| Phase 3 | WIN | 4.0 (±0.4) | 58.2 (±2.3) | N/A |
| VEH | 3.9 (±0.3) | 61.3 (±6.7) | ||
| Phase 4 | WIN | 5.6 (±0.6) | 49.9 (±2.3) | F(1,16) = 0.51, p = 0.49 |
| VEH | 5.6 (±0.5) | 54.1 (±3.4) | ||
| Phase 5 | WIN | 6.0 (±0.4) | 47.2 (±2.4) | F(1,16) = 0.29, p = 0.60 |
| VEH | 6.0 (±0.2) | 56.6 (±3.3)* | ||
aNumber of days WIN SA or VEH SA rats remained in current phase of training before advancing to next phase. Reinforcers earned: bSingle day of phase 1; cAverage over first 4 days in phases 2–3; dAverage over first 6 days in phases 4–5. eAccuracy across delays on first day of training in phases 4–5. *p < 0.05, WIN vs. VEH.