¿Constituyen los elementos de una categoría combinatoria una clase de equivalencia?: evidencias comportamentales y neurobiológicas

Ángel Tabullo, Alberto Yorio, Silvano Zanutto, Alejandro Javier Wainselboim

Resumen


Se ha propuesto que la capacidad de adquirir lenguaje y relaciones de equivalencia están vinculadas. Estudios previos muestran que estímulos relacionados por equivalencia transfieren propiedades combinatorias en una gramática artificial. Recíprocamente, en el presente trabajo analizamos si estímulos que comparten las mismas propiedades combinatorias por entrenamiento en una gramática artificial verifican posteriormente las propiedades de una clase de equivalencia. Los resultados muestran que los estímulos de una misma clase combinatoria conforman una clase funcional que verifica las propiedades de la equivalencia (i.e. reflexividad, simetría y transitividad). El procesamiento de estas relaciones genera un potencial N400 que refleja un costo de procesamiento vinculado al número de estímulos nodales intervinientes. Este resultado podría explicarse en términos de un sistema proactivo que extrae y almacena regularidades estadísticas de los estímulos; conecta estímulos nuevos con las representaciones relevantes previamente adquiridas y utiliza estas asociaciones para generar predicciones sobre los eventos futuros


Palabras clave


gramática artificial, relaciones de equivalencia, potenciales evocados, transferencia de funciones

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Referencias


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DOI: http://dx.doi.org/10.32348/1852.4206.v11.n2.20706

Copyright (c) 2019 Ángel Tabullo, Alberto Yorio, Silvano Zanutto, Alejandro Javier Wainselboim

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