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Balbucear en el modo manual: evidencia de la ontogenia del lenguaje
1Department of Psychology, McGill University, Montréal, Québec, Canada.
Science (New York, N.Y.)
|March 22, 1991
Resumen
El balbuceo infantil no se limita al habla. El balbuceo manual en bebés sordos muestra que el balbuceo refleja una capacidad de lenguaje innata, basada en el cerebro, no solo las habilidades de producción del habla.
Área de la Ciencia:
- La lingüística del desarrollo lingüística.
- Neurociencia del lenguaje.
- Adquisición del lenguaje infantil de los niños.
Sus antecedentes:
- El balbuceo vocal en los bebés está tradicionalmente relacionado con la maduración de los mecanismos de producción del habla.
- El papel de la modalidad (hablada vs. firmada) en el desarrollo temprano del lenguaje sigue siendo un área de investigación activa.
Objetivo del estudio:
- Investigar la naturaleza del balbuceo infantil más allá de la modalidad vocal.
- Para determinar si el balbuceo es específico de la modalidad o refleja una capacidad lingüística más abstracta.
Principales métodos:
- Análisis comparativo del balbuceo vocal en bebés oyentes y el balbuceo manual en bebés sordos expuestos al lenguaje de señas desde el nacimiento.
- Examen de las similitudes estructurales y las diferencias entre los patrones de balbuceo vocal y manual.
Principales resultados:
- El balbuceo manual en los niños sordos exhibe similitudes estructurales con el balbuceo vocal en los niños oyentes.
- Estas similitudes sugieren que el balbuceo no depende únicamente de la maduración del sistema articulador vocal.
Conclusiones:
- El balbuceo parece ser una manifestación de una capacidad de lenguaje amodal, basada en el cerebro, independiente de la producción del habla.
- Esta capacidad es crucial para la adquisición del lenguaje, que implica la producción de unidades lingüísticas como un precursor de los sistemas lingüísticos maduros.
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