EFECTO DEL REFORZAMIENTO PARCIAL EN LA AUTOMEDICACIÓN EMOCIONAL
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2017-07-03
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Jaén: Universidad de Jaén
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Este estudio analiza el efecto que se produce al someter a animales a una situación de frustración mediante la reducción en la magnitud de una recompensa esperada (contraste sucesivo negativo consumatorio), y cómo un entrenamiento en reforzamiento parcial puede atenuar dicho efecto basándonos en la hipótesis de la automedicación emocional. Se ha trabajado con ratas Wistar macho, las cuales han pasado por dos pruebas durante dos fases (precambio y postcambio); una consumatoria donde tenían acceso a una solución de sacarosa al 32% si tenían reforzamiento continuo, o dicha solución y agua (dependiendo de la sesión), si eran reforzadas parcialmente; y otra de preferencia donde tenían acceso a agua o alcohol dependiendo del grupo experimental. Se esperaba que los grupos de reforzamiento continuo aumentaran su consumo de alcohol y fuera notablemente mayor que el del grupo de reforzamiento parcial tras la fase postcambio, donde se producía la devaluación de recompensa.
This study analyzes the effect that occurs in a situation of frustration throug,h the reduction in the magnitude of an expected reward, and as a partial reinforcement training can attenuate that effect based on the hypothesis of emotional self-medication. We have worked with male Wistar rats, which have passed two tests during two phases (preshift and postshift); a consummatory test where lt had access to a solution of sucrose to 32%,if it belonged to the continuous reinforcement, and the same solution and water (depending on the session), if rats belonged to partially reinforced; and the preference test, where lt has access to water or alcohol depending on the experimental group. Continuous reinforcement groups were expected to increase their alcohol consumption significantly compared to the partial reinforcement group after the postshift phase, where the reward devaluation occurred.
This study analyzes the effect that occurs in a situation of frustration throug,h the reduction in the magnitude of an expected reward, and as a partial reinforcement training can attenuate that effect based on the hypothesis of emotional self-medication. We have worked with male Wistar rats, which have passed two tests during two phases (preshift and postshift); a consummatory test where lt had access to a solution of sucrose to 32%,if it belonged to the continuous reinforcement, and the same solution and water (depending on the session), if rats belonged to partially reinforced; and the preference test, where lt has access to water or alcohol depending on the experimental group. Continuous reinforcement groups were expected to increase their alcohol consumption significantly compared to the partial reinforcement group after the postshift phase, where the reward devaluation occurred.
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Psicología Clínica