The present study demonstrates a method which enables separation of the 'direct' pharmacological effects of heroin on activity and operant responding from the 'indirect' reinforcing effects of heroin. Experiment I was carried out at 0.1 mg/kg heroin with naive male albino Wistar rats (N = 21) from a
The effect of caffeine, theophylline and amphetamine on operant responding of the mouse
β Scribed by William A. McKim
- Publisher
- Springer
- Year
- 1980
- Tongue
- English
- Weight
- 326 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0033-3158
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