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Drug discrimination under a concurrent fixed-ratio fixed-ratio schedule.
Pigeons were trained to discriminate 5.0 mg/kg pentobarbital from saline under a two-key concurrent fixed-ratio 10 fixed-ratio 40 schedule of food presentation, in which the fixed-ratio component with the lower response requirement was programmed to reinforce responding on one key after drug adminis...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1999
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1284734/ https://ncbi.nlm.nih.gov/pubmed/10503298 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1901/jeab.1999.72-187 |
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