Highest dose of cocaine producing <20% injection-lever responding and food-reinforced response requirement at which allocation of responding was shifted such that >20% of responses were emitted on the injection lever
Cocaine | FR Value | |
|---|---|---|
| mg/kg | ||
| Dominant | ||
| C-6528 | 0.01 | 200 |
| C-5386 | 0.003 | 200 |
| C-6530 | 0.03 | 100 |
| C-6629 | 0.01 | 400 |
| C-6625 | 0.003 | 100 |
| Subordinate | ||
| C-6626 | 0.003 | 400 |
| C-6217 | 0.001 | 200 |
| C-6216 | 0.01 | 100 |
| C-6214 | — | |
| C-6627 | 0.003 | 200 |
| C-6529 | 0.003 | 400 |
—, no cocaine dose produced <20% injection-lever responding in this animal.