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Maintenance of key pecking by response-independent food presentation: the role of the modality of the signal for food
Three pigeons were exposed to a series of procedures in which periods of response-independent food presentation, on a variable-time schedule, alternated with periods in which food was never presented. The stimuli that signalled periods of food availability or non-availability varied from one procedu...
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1973
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| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1334096/ https://ncbi.nlm.nih.gov/pubmed/16811689 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1901/jeab.1973.20-17 |
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