Responding of pigeons was maintained under a multiple fixed interval, fixed ratio schedule of food delivery, and 10 mg/kg morphine was administered daily. Responding during both schedule components was initially decreased and measurable tolerance developed to this effect after four daily injections.
Development of behavioral tolerance to morphine and methadone using the schedule-controlled behavior of the pigeon
โ Scribed by Stephen A. Heifetz; D. E. McMillan
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 783 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0033-3158
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