Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions

Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions

Food intake can be altered, without changing food properties, through modification of the inter access-to-food intervals and access-to-food duration. Understanding the influence of each of these variables on food intake will allow a better comprehension of problems of public health, such as obesity,...

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Main Author: Díaz-Reséndiz, Felipe de Jesús
Format: Online
Language:eng
Published: Universidad Autónoma de Tamaulipas 2013
Online Access:https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/9
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spelling oai:ojs.pkp.sfu.ca:article-92015-09-30T10:10:01Z Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions Función reforzante del alimento después de un periodo de privación sobre la conducta alimentaria en ratas: un vínculo entre motivación y condicionamiento Díaz-Reséndiz, Felipe de Jesús Obesity food food deprivation rats. Obesidad alimento restricción alimentaria ratas. Food intake can be altered, without changing food properties, through modification of the inter access-to-food intervals and access-to-food duration. Understanding the influence of each of these variables on food intake will allow a better comprehension of problems of public health, such as obesity, and understanding of excessiveness or deficiency in the consumption of food. In this study both variables were manipulated to observe their effects on food intake behavior in rats. A factorial design was used to combine three different inter access-to-food intervals (720, 18 and 45 minutes), with three levels of access-to-food duration (40, 10 and 2.5 minutes). Food intake was compared with a base line consumption of 15 days of free access-to-food. It was found that increasing the intervals of access-to-food yielded more food intake. Decreasing the time of access-to-food controlled faster reactions to the opportunity to eat than when food was available at the time. This decrease also controlled that every opportunity to consume food was taken. When duration of access-to-food was increased, body weight increased too. Results from this basic research study contribute to knowledge about the possible iatrogenic effects of inadequate exposure to periods of restriction and access to food, characteristic of obesity and eating disorders. From a theoretical standpoint, this study is a step forward in the conceptual integration of two separated areas of knowledge in experimental analysis of behavior. El consumo de alimento puede ser alterado, sin cambiar sus propiedades, mediante la modificación del tiempo entre cada acceso y la duración del acceso al mismo. Entender la influencia de cada una de estas variables en el consumo de alimentos, permitirá ampliar la comprensión que se tiene, sobre problemas de salud pública como la obesidad, así como entender el consumo excesivo o deficitario de alimentos. En el presente estudio se manipularon ambas variables para observar sus efectos en la conducta alimentaria en ratas. Se utilizó un diseño factorial en el que se combinaron tres niveles de tiempo entre accesos al alimento, 720, 180 y 45 minutos, con tres niveles de tiempo de acceso al alimento, 40, 10 y 2.5 minutos. El consumo de alimento se comparó con la ingesta durante una línea base de 15 días de acceso libre al alimento. Se encontró que aumentar el intervalo entre accesos al alimento resulta en más consumo de alimento. Disminuir el tiempo de acceso al alimento controla reacciones más rápidas frente a la oportunidad de comer que, cuando el alimento está disponible todo el tiempo. Esta disminución también controla que en cada oportunidad de comer se consuma alimento. Cuando se aumenta el tiempo de acceso al alimento, el peso corporal aumenta. Los resultados desde la investigación básica aportan conocimiento sobre los posibles efectos iatrogénicos de una inadecuada exposición a períodos de restricción y acceso al alimento, que es una característica presente en la obesidad y los trastornos del comportamiento alimentario. A nivel teórico, la presente investigación es un avance sobre la integración conceptual de dos áreas de conocimiento en análisis experimental de la conducta. Universidad Autónoma de Tamaulipas 2013-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/9 10.29059/cienciauat.v8i1.9 CienciaUAT; Vol. 8 No. 1: July-December 2013; 18-25 CienciaUAT; Vol. 8 No. 1: Julio-Diciembre 2013; 18-25 2007-7858 2007-7521 eng https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/9/12
institution CIENCIA UAT
collection OJS
language eng
format Online
author Díaz-Reséndiz, Felipe de Jesús
spellingShingle Díaz-Reséndiz, Felipe de Jesús
Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
author_facet Díaz-Reséndiz, Felipe de Jesús
author_sort Díaz-Reséndiz, Felipe de Jesús
title Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
title_short Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
title_full Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
title_fullStr Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
title_full_unstemmed Food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
title_sort food reinforcement function after deprivation on eating behavior in rats: a link between motivation and conditions
description Food intake can be altered, without changing food properties, through modification of the inter access-to-food intervals and access-to-food duration. Understanding the influence of each of these variables on food intake will allow a better comprehension of problems of public health, such as obesity, and understanding of excessiveness or deficiency in the consumption of food. In this study both variables were manipulated to observe their effects on food intake behavior in rats. A factorial design was used to combine three different inter access-to-food intervals (720, 18 and 45 minutes), with three levels of access-to-food duration (40, 10 and 2.5 minutes). Food intake was compared with a base line consumption of 15 days of free access-to-food. It was found that increasing the intervals of access-to-food yielded more food intake. Decreasing the time of access-to-food controlled faster reactions to the opportunity to eat than when food was available at the time. This decrease also controlled that every opportunity to consume food was taken. When duration of access-to-food was increased, body weight increased too. Results from this basic research study contribute to knowledge about the possible iatrogenic effects of inadequate exposure to periods of restriction and access to food, characteristic of obesity and eating disorders. From a theoretical standpoint, this study is a step forward in the conceptual integration of two separated areas of knowledge in experimental analysis of behavior.
publisher Universidad Autónoma de Tamaulipas
publishDate 2013
url https://revistaciencia.uat.edu.mx/index.php/CienciaUAT/article/view/9
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