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Respuesta de adaptación al cambio de tono durante el habla atenuada al reaprender
Jessica L Gaines1, Corby L Dale2, John F Houde3
1UC Berkeley - UCSF Graduate Program in Bioengineering, San Francisco, CA, United States.
Frontiers in human neuroscience
|January 23, 2026
Resumen
El control de la frecuencia fundamental (f0) del habla muestra un efecto de atenuación, similar al aprendizaje motor. Reaprender las respuestas a los errores de tono disminuye con la exposición repetida dentro de una sola sesión.
Sus antecedentes:
- La adaptación sensoriomotora implica ajustar el comportamiento para contrarrestar los errores sensoriales.
- Estudios previos exploraron la desadaptación y la readaptación en tareas de alcance del brazo.
- La readaptación del tono del habla (f0) dentro de una sola sesión sigue siendo poco estudiada.
Objetivo del estudio:
- Investigar los mecanismos de reaprendizaje en el control de la f0 del habla.
- Examinar la adaptación a la retroalimentación auditiva alterada en el habla.
- Determinar si el control de la f0 exhibe características de aprendizaje implícito.
Principales métodos:
- Los participantes realizaron una tarea de habla con una sola palabra con bloques alternos de retroalimentación auditiva normal y con cambio de tono.
- Se presentaron tres bloques de retroalimentación con cambio de f0 y sin cambio.
- Se midió la magnitud de la adaptación a los errores de tono.
Principales resultados:
- La magnitud de la adaptación disminuyó en bloques sucesivos de retroalimentación con cambio de tono.
- Se observó un efecto de atenuación significativo, con una adaptación reducida en bloques posteriores.
- Este patrón refleja los hallazgos en el aprendizaje motor implícito de movimientos del brazo.
Conclusiones:
- El control de la f0 del habla demuestra características de aprendizaje implícito.
- Los hallazgos sugieren que la readaptación del control del tono está sujeta a atenuación.
- Esta investigación integra el control de la f0 del habla dentro del marco más amplio del control sensoriomotor.
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