Experimental Group | Group Size | Reinforcer | Mean No. of Rewards Earned | Body Wt |
---|---|---|---|---|
g | ||||
CGP7930 (fixed ratio) | n = 6 | Nicotine | 15 ± 2 | 330 ± 3.7 |
0 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 12 | Nicotine | 14.9 ± 1 | 426 ± 9.4 |
0 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 10 | Food | 125.8 ± 7.5 | 395.8 ± 8.3 |
0.125 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 10 | Nicotine | 12.2 ± 1.6 | 440.4 ± 13 |
0.125 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 10 | Food | 117.2 ± 6.1 | 403.8 ± 3.2 |
0.25 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 8 | Nicotine | 13 ± 1.2 | 438.4 ± 12.4 |
0.25 mg/kg CGP44532 + GS39783 (fixed ratio) | n = 10 | Food | 121.7 ± 7 | 401.9 ± 8.9 |
BHF177 (fixed ratio) | n = 11 | Nicotine | 13.7 ± 1.03 | 332.8 ± 4.2 |
BHF177 (fixed ratio) | n = 7 | Food | 134.7 ± 6.8 | 386.6 ± 12.5 |
BHF177 (progressive ratio) | n = 7 | Nicotine | 6.3 ± 1.2 | 447.4 ± 8.2 |
BHF177 (progressive ratio) | n = 10 | Food | 9 ± 0.7 | 405 ± 5.8 |