Conditioned morphine withdrawal in the hamster

  title={Conditioned morphine withdrawal in the hamster},
  author={Paul Schnur},
Conditioned withdrawal among golden Syrian hamsters was studied in two experiments. In experiment 1, morphine-pelleted (75 mg) hamsters were observed for signs of withdrawal (wet-dog shakes, etc.) before and after a naloxone (1 mg/kg) injection that was administered in a distinctive environment. Withdrawal signs that occurred in the distinctive environment before the naloxone injection were defined as anticipatory conditioned withdrawal responses. Two, 9, and 30 days following pellet removal… CONTINUE READING