Table 5.
Mean Number of Key Pecks per Minute Following Saline Vehicle Administration for Each Phase of Experiment 3
| Subject |
|||||
|---|---|---|---|---|---|
| Phase | 740 | 945 | 881 | 808 | 965 |
| Acute | 171.0 (5.9) | 145.8 (9.5) | 121.3 (3.7) | 201.1 (7.2) | 134.0 (14.6) |
| 30 days saline | 195.1 (11.4) | 133.1 (7.9) | 120.0 (9.0) | 202.7 (2.4) | 94.4 (4.6) |
| 30 days cocaine | 182.1 (0.9) | 116.5 (22.0) | 127.0 (19.2) | — | 126.4 (7.1) |
| 60 days cocaine | 195.5 (15.3) | 123.6 (3.5) | 109.2 (21.9) | 196.8 (5.3) | 141.9 (25.5) |
| Presession | 162.4 (12.1) | 103.6 (11.8) | 105.3 (4.0) | 191.4 (26.5) | 111.6 (14.8) |
Note. Data were used to calculate percentage of saline values for Figures 5 and 6. Standard deviations appear in parentheses.