Table 2.
HiS MOR (n = 9) | LoS MOR (n = 11) | HiS SAL (n = 6) | LoS SAL (n = 6) | |
---|---|---|---|---|
Phase 2 (morphine dependence induction) treatments | MOR+SAL | MOR+SAL | SAL+SAL | SAL+SAL |
Phase 4 (precipitated withdrawal) treatments | MOR+NAL | MOR+NAL | SAL+NAL | SAL+NAL |
HiS = high saccharin rats; LoS = low saccharin rats; MOR = morphine (10 mg/kg); NAL = naloxone (1 mg/kg); SAL = saline