發展性語言障礙之學齡兒童在轉換時的語言中介

// Verbal Mediation During Shifting in School-Aged Children With Developmental Language Disorder

27位兒童（15 DLD、12 TD）以提示式局部—全局任務比對有／無語音阻斷｜DLD反應較慢但準確率相近；語音阻斷使所有人速度與準確度下降，DLD基線混合成本較高但阻斷後趨同｜結論：語言化（verbal mediation）主要支持任務維持（sustained control）而非單次切換，語言弱勢會削弱此益處，提示強化語言支持可改善持續性執行功能。

// This study tested whether children with developmental language disorder (DLD) rely on verbal mediation during executive shifting by comparing performance with and without articulatory suppression in 27 children aged 8–12 (15 DLD, 12 TD) using a cued local–global task. Accuracy and reaction time were analyzed for mixing (sustained task demands) and switching (trial-level shifts) costs while controlling for age and selective attention. Children with DLD were slower but similarly accurate; articulatory suppression reduced speed and accuracy for all, and mixing costs were larger for DLD at baseline but equalized under suppression. The findings suggest verbal mediation supports sustaining task goals more than trial-level switching, and weaker language reduces that benefit.

Published 2026年8月31日