Table 1.
Average Number of Active/Inactive Lever Responses and Pellets Earned During 2-Hour FR Training Sessions Prior to Testing
| Food pellet | FR | Sex | Active Lever | Inactive Lever | Pellets |
|---|---|---|---|---|---|
| HFP | 1 | M | 275 (58) | 15 (6) | 215 (42) |
| F | 195 (40) | 29 (10) | 121 (22) | ||
| 3 | M | 429 (76) | 18 (4) | 134 (24) | |
| F | 442 (104) | 15 (6) | 121 (28) | ||
| 10 | M | 627 (122) | 15 (3) | 61 (12) | |
| F | 731 (141) | 19 (8) | 70 (13) | ||
| 32 | M | 567 (155) | 16 (3) | 17 (5) | |
| F | 785 (236) | 12 (5) | 32 (10) | ||
| 100 | M | 395 (136) | 17 (3) | 3 (1) | |
| F | 508 (286) | 8 (4) | 5 (3) | ||
| LFP | 1 | M | 213 (40) | 14 (3) | 159 (28) |
| F | 101 (10) | 26 (4) | 81 (6) | ||
| 3 | M | 362 (53) | 16 (7) | 113 (17) | |
| F | 262 (28) | 27 (8) | 78 (8) | ||
| 10 | M | 1056 (137) | 23 (9) | 104 (13) | |
| F | 488 (76) | 14 (3) | 47 (7) | ||
| 32 | M | 985 (199) | 34 (16) | 30 (6) | |
| F | 571 (115) | 15 (3) | 17 (4) | ||
| 100 | M | 676 (165) | 24 (8) | 6 (1) | |
| F | 276 (103) | 16 (4) | 2 (1) |
Abbreviations: FR, fixed ratio; HFP, high-fat palatable reward; LFP, low-fat palatable reward.
Values are n (SEM).