Carlos de Jesús Torres Ceja, Enrique Hernández Rosas, Luis H. Silva Castillo y Francisco Gómez Rangel
Centro de Estudios e Investigaciones en Comportamiento-Universidad de Guadalajara
Descargar / Download PDF: http://dx.doi.org/10.5514/rmac.v47.i1.79741
Resumen
Palabras clave: duración de la señal, Control del estímulo, contingencias temporales, control temporal, ratas.
Abstract
The effects of manipulating the duration of a signal, correlated to contingent water delivery, over the response pattern were evaluated under temporally defined schedules. Six rats were used as experimental subjects, divided into two experimental groups. A temporal based schedule with a T-cycle duration of 60 s was used. Both the tD and t∆ subintervals maintained a duration of 30 s each. A signal stimulus was correlated to the tD subinterval. The signal duration was manipulated between phases using the following values: 30, 3, 0.3, and 0 s. For Group 1, the signal duration changed on decreasing order, while for Group 2, it was increasing. Results showed that even when all the subjects exhibited high production of water deliveries, the discriminative signal function was rather dependent on exposure history to the initial temporal contingencies (with or without correlated signal). In this study, the effects of signal duration were observed in the sub-interval not correlated with the signal (t∆). Results are discussed in terms of stimulus function and temporally-controlled response patterns.
Key words: signal duration, stimulus control, temporal contingencies, temporal control, rats.
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