Group | Acquisition Sessions and Cocaine Doses | Postacquisition Sessions and Cocaine Doses | PR Sessions and Cocaine Doses |
---|---|---|---|
A, n = 15* | 3 × FR1, 0.6 mg/kg/inf | 10 × PR, 1.2 mg/kg/inf | |
B, n = 11 | 3 × FR1, 0.6 mg/kg/inf | 10 × PR, 0.6 mg/kg/inf | |
C, n = 15* | 3 × FR1, 0.6 mg/kg/inf | 5 × FR1, 1.2 mg/kg/inf | 10 × PR, 1.2 mg/kg/inf |
D, n = 12 | 3 × FR1, 0.6 mg/kg/inf | 5 × FR1, 0.6 mg/kg/inf | 10 × PR, 0.6 mg/kg/inf |
↵* One rat in group A and one rat in group C were excluded after the acquisition phase and, as such, n values for PR testing were 14 for both groups A and C (see Materials and Methods: Exclusions and Exceptions.