Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/52348

TítuloJoint stimulus control in a temporal discrimination task
Autor(es)Pinto, Carlos André Ribeiro Oliveira
Fortes, Maria Inês Abreu
Machado, Armando
Palavras-chaveStimulus control
Discrimination learning
Attentional trade-off
Many-to-one matching
Key peck
RevistaAnimal Cognition
Resumo(s)The ability to identify stimuli that signal important events is fundamental for an organism to adapt to its environment. In the present paper, we investigated how more than one stimulus could be used jointly to learn a temporal discrimination task. Ten pigeons were exposed to a symbolic matching-to-sample procedure with three durations as samples (2, 6, and 18 s of keylight) and two colors as comparisons (red and green hues). A 30-s intertrial interval (ITI), illuminated with a houselight, separated the trials. Both the houselight and the sample keylight could control responding, so two tests were run to assess how these stimuli influenced choice. In the no-sample test, the keylight was not presented; in the dark-ITI test, the houselight was not illuminated. Results suggest that both houselight and keylight controlled choice, and with the exception of one animal, the more a pigeon relied on one of these stimuli, the less it appeared to rely on the other.
Arbitragem científicayes
Aparece nas coleções:CIPsi - Artigos (Papers)

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