Efecto del aprendizaje discriminativo previo sobre la conducta de búsqueda de alimento en el laberinto radial: los brazos del laberinto como posibilitadores de acción y el ED como inductor aprendido

Josué Antonio Camacho Candia, Felipe Cabrera

Resumen


e evaluó el efecto del aprendizaje discriminativo previo sobre la conducta de búsqueda de alimento en el laberinto radial no elevado con tres configuraciones. Se trabajó con 24 ratas macho divididas en tres grupos. En la primera fase (preprueba) las ratas debieron obtener el alimento que se encontraba en los contenedores del laberinto radial al final de cada brazo del laberinto. En la segunda fase (entrenamien-to) los tres grupos fueron expuestos a una tarea de discriminación visual simple en una caja de condicionamiento operante. En la tercera fase (posprueba) los sujetos nuevamente fueron expuestos al laberinto radial correspondiente, en donde algunos contenedores, ahora en extinción, fueron señalados por el estímulo discriminativo (ED) entrenado en la fase anterior. Los resultados mostraron que durante la posprueba la probabilidad de elegir inicialmente un contenedor con ED fue menor en los casos que no correspondía con la presencia de brazos que conducían a él y aumentó la conducta exploratoria en la plataforma de inicio. Se discute el papel de los posibilitadores de acción (Affordances) en el desempeño de los sujetos y la importancia de la configuración del laberinto y del inductor entrenado para la búsqueda de alimento desde una perspectiva de los sistemas conductuales.

Palabras clave


Aprendizaje Discriminativo; Posibilitadores de Acción; Inductor Aprendido.

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DOI: http://dx.doi.org/10.22201/fesi.20070780e.2021.13.1.78073