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Perspectivas acústicas sobre la dinámica coarticulatoria en la afasia: evidencia de un lenguaje semítico
1College of Social Sciences, Arts, and Humanities, Al-Akhawayn University, Morocco.
Journal of communication disorders
|August 31, 2025
Resumen
Este estudio revela que los hablantes de árabe con Broca
Área de la Ciencia:
- Patología del habla y el lenguaje
- La lingüística
- Fonética acústica
Sus antecedentes:
- La afasia de Broca afecta la producción del habla, afectando el tiempo coarticulatory.
- Existe una investigación limitada sobre la coarticulación en los hablantes de árabe con afasia.
- Comprender la variabilidad fonética específica del lenguaje es crucial.
Objetivo del estudio:
- Evaluar la viabilidad del uso de medidas acústicas para analizar la dinámica coarticulatoria en hablantes árabes con afasia de Broca.
- Para identificar las diferencias acústicas en la coarticulación entre los hablantes de árabe con afasia de Broca y controles.
- Para explorar la influencia de la fonología árabe en el tiempo coarticulatory en la afasia.
Principales métodos:
- Análisis acústico utilizando el software PRAAT en sílabas fricativas y vocales.
- Medición de los valores formantes (F2, F3), el tiempo de inicio de la voz (VOT), la intensidad, los centroides espectrales y la variabilidad de la transición.
- Comparación de datos acústicos entre cinco hablantes de árabe con afasia de Broca y cinco controles.
Principales resultados:
- Los individuos con afasia de Broca mostraron valores formantes elevados y variables y VOT prolongado y variable.
- Se observaron niveles reducidos de intensidad y una mayor variabilidad en las frecuencias F2/ F3 en el grupo de afasia.
- Los hallazgos sugieren un retraso, no una pérdida, en la coarticulación, con una mayor variabilidad de transición segmental.
Conclusiones:
- Las medidas acústicas caracterizan efectivamente las interrupciones del tiempo de coarticulación en los hablantes de árabe con afasia de Broca.
- La estructura fonológica del árabe influye en los patrones de coarticulación en la afasia.
- Las intervenciones terapéuticas deben centrarse en el tiempo, la intensidad y la claridad acústica para esta población.
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