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Ratio size and cocaine concentration effects on oral cocaine-reinforced behavior.
Monkeys were given a choice between cocaine solutions and water under concurrent fixed-ratio reinforcement schedules. The operant response was spout contact. Six rhesus monkeys served as subjects. The cocaine concentration was varied from 0.0125 to 0.8 mg/ml, and the fixed-ratio value was varied fro...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1998
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1284677/ https://ncbi.nlm.nih.gov/pubmed/9768506 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1901/jeab.1998.70-185 |
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