Delay Gradients for Spout-Licking and Magazine-Entering Induced by a Periodic Food Schedule

Pellón, Ricardo, Íbias, Javier y Killeen, Peter R. . (2018) Delay Gradients for Spout-Licking and Magazine-Entering Induced by a Periodic Food Schedule. Psychological Record


Título Delay Gradients for Spout-Licking and Magazine-Entering Induced by a Periodic Food Schedule
Autor(es) Pellón, Ricardo
Íbias, Javier
Killeen, Peter R.
Materia(s) Psicología
Abstract The present experiments studied impulsivity by manipulating the delay between target responses and presentation of a reinforcer. Food-deprived SHR, WKY, and Wistar rats were exposed to a fixed-time 30-s schedule of food pellet presentation until they developed stable patterns of water spout-licking and magazine-entering. In successive phases of the study, a resetting delay contingency postponed food delivery if target responses (licks or entries) occurred within the last 1, 2, 5, 10, 20, 25, or 28 s of the inter-food interval. Response-food delays were applied independently for the two behaviors during separate experimental phases, and order of presentation and the behavior that was punished first were counterbalanced. Licking was induced in the order of Wistar > SHR > WKY, and magazine entries were in the order of SHR > WKY > Wistar. Magazine entries showed steeper delay gradients than licking in SHR and Wistar rats but were of similar great inclination in the WKY rats. The different responses were differentially sensitive to delays. This suggests a different ordering of them in the interval between reinforcers. It also has implications for attempts to change impulsive behavior, both in terms of the nature of the response and its removal from reinforcing consequences.
Palabras clave Schedule-induced behavior
Licks
Magazine entries
Response-food delays
Strain differences
Rats
Editor(es) Springer Nature
Fecha 2018-03-26
Formato application/pdf
Identificador bibliuned:DptoMCC-FPSI-Articulos-Jibias-0006
http://e-spacio.uned.es/fez/view/bibliuned:DptoMCC-FPSI-Articulos-Jibias-0006
DOI - identifier 10.1007/s40732-018-0275-2
ISSN - identifier 2163-3452
Nombre de la revista Psychological Record
Número de Volumen 68
Página inicial 151
Página final 162
Publicado en la Revista Psychological Record
Idioma eng
Versión de la publicación acceptedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales This is an Accepted Manuscript of an article published by Springer Nature in The Psychological Record, available at: https://doi.org/10.1007/s40732-018-0275-2
Notas adicionales Este es el manuscrito aceptado del artículo publicado por Springer Nature en The Psychological Record, disponible en línea: https://doi.org/10.1007/s40732-018-0275-2

 
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Creado: Wed, 07 Feb 2024, 02:23:39 CET