Article

Aprendizaje perceptivo en aversión condicionada al sabor: análisis del efecto del orden de presentación de los estímulos

Psicológica: Revista de metodología y psicología experimental, ISSN 0211-2159, Vol. 30, Nº 1, 2009, pags. 27-40 01/2009;
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ABSTRACT En un experimento tres grupos de ratas recibieron inicialmente exposición a un compuesto de dos sabores, AX, y a uno de los elementos de ese compuesto, X. El grupo ALT recibió las presentaciones de AX y X alternadamente; el grupo BLQ-AX-X recibió primero un bloque con todas las presentaciones de AX y después un bloque con todas las presentaciones de X; el grupo BLQ-X-AX recibió la secuencia de presentación contraria. Posteriormente se estableció una aversión a X. Finalmente se observó que la generalización de esta aversión ante AX fue menor en el grupo ALT que en los grupos BLQ-AX-X y BLQ-X-AX, y que estos dos grupos no difirieron entre sí. Se discuten las implicaciones de estos resultados para la hipótesis de modulación de saliencia propuesta por G. Hall (2003).

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