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Updated: Feb 1, 2026
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The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
Published on: April 19, 2019
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Estabilidad de los efectos del procesamiento temporal en la afasia
Matthew J Sayers1, Robert W Wiley2, Jessica Obermeyer3
1Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL.
Journal of speech, language, and hearing research : JSLHR
|January 30, 2026
Resumen
El procesamiento temporal en la afasia es estable, con efectos que varían según la tarea y el retraso. Esta investigación aclara cómo los retrasos en la respuesta afectan la precisión en personas con afasia (PWA) y controles.
Área de la Ciencia:
- Neurociencia
- Psicolingüística
- Patología del Habla y del Lenguaje
Sus antecedentes:
- El deterioro del lenguaje en la afasia está relacionado con alteraciones en el procesamiento temporal en la activación léxica.
- El modelo de activación interactiva identifica la transmisión y el mantenimiento como componentes temporales clave.
- Los retrasos en la respuesta en las tareas del lenguaje revelan déficits en el procesamiento temporal en personas con afasia (PWA).
Objetivo del estudio:
- Investigar la estabilidad de los efectos del procesamiento temporal en PWA y controles neurotípicos.
- Determinar si los cambios en la precisión con retrasos en la respuesta son efectos estables o fluctuaciones aleatorias del rendimiento.
- Evaluar el impacto de la variación de los intervalos de respuesta en el rendimiento de las tareas del lenguaje.
Principales métodos:
- Se recopilaron datos de denominación y repetición de 8 PWA y 10 controles.
- Se administraron tareas con retrasos de respuesta de 1, 5 y 10 segundos.
- Se utilizaron modelos mixtos logísticos para analizar la precisión y la estabilidad de los efectos temporales en múltiples puntos de tiempo y sesiones.
Principales resultados:
- Los efectos del procesamiento temporal se mantuvieron estables durante varios días para la mayoría de PWA y controles.
- Once de 12 efectos del procesamiento temporal fueron estables en PWA, y 6 de 8 en controles.
- Los patrones de rendimiento demostraron interacciones entre los efectos del procesamiento temporal, el tipo de tarea y la duración del intervalo de respuesta.
Conclusiones:
- Los déficits en el procesamiento temporal en la afasia muestran estabilidad con el tiempo.
- Los retrasos en la respuesta afectan consistentemente la precisión de las tareas del lenguaje en PWA y controles.
- Los hallazgos contribuyen a la comprensión de la dinámica temporal de la activación léxica en el procesamiento del lenguaje típico y alterado.
Palabras clave:
afasiaprocesamiento temporalactivación léxicaretraso de respuestaprecisiónestabilidadMás Videos Relacionados
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