Department of Kinesiology, National Tsing Hua University, Hsinchu City, Taiwan; Research Center for Education and Mind Sciences, National Tsing Hua University, Hsinchu City, Taiwan.
Department of Special Education, National Tsing Hua University, Hsinchu City, Taiwan; Research Center for Education and Mind Sciences, National Tsing Hua University, Hsinchu City, Taiwan.
Res Dev Disabil. 2023 Mar;134:104412. doi: 10.1016/j.ridd.2022.104412. Epub 2023 Jan 11.
Previous studies have found an association between motor immaturity and developmental language impairment in children. However, systematic investigations of somatosensory dysfunctions that might be linked to motor deficits in children with developmental language disorder (DLD) are lacking.
Examined haptic perception and motor skills in school-age children with DLD and typically-developing (TD) children.
Sixteen children with DLD and sixteen age-matched TD children performed a curvature detection task measuring haptic sensitivity and a curvature discrimination task measuring haptic acuity. The Movement Assessment Battery for Children, 2nd edition (MABC-2) was also conducted to evaluate children's motor ability.
The results revealed elevated thresholds of both haptic detection (67.5%) and haptic discrimination (67.9%) in the DLD group when compared to the TD group. In addition, the children with DLD performed significantly less well on the manual dexterity of MABC-2. Finally, a lower haptic acuity was associated with poorer manual dexterity scores of MABC-2.
This study demonstrates for the first time that not only motor skills, but also haptic function is altered in children with DLD. The observed association between manual dexterity and haptic acuity suggests a close relationship between haptic and motor skills in school-age children.
先前的研究发现，儿童运动发育不成熟与语言发育障碍之间存在关联。然而，系统研究与语言发育障碍儿童运动缺陷相关的躯体感觉功能障碍的研究还很少。
检查学龄期语言发育障碍（DLD）儿童和典型发育（TD）儿童的触觉感知和运动技能。
16 名 DLD 儿童和 16 名年龄匹配的 TD 儿童进行了曲率检测任务，以测量触觉灵敏度，以及曲率辨别任务，以测量触觉锐度。还进行了儿童运动评估测试-第二版（MABC-2），以评估儿童的运动能力。
与 TD 组相比，DLD 组的触觉检测（67.5%）和触觉辨别（67.9%）阈值均升高。此外，DLD 组儿童在 MABC-2 的手灵巧性方面表现明显较差。最后，较低的触觉锐度与 MABC-2 的手灵巧性评分较差相关。
本研究首次证明，不仅运动技能，而且触觉功能在 DLD 儿童中也发生了改变。在手灵巧性和触觉锐度之间观察到的关联表明，学龄期儿童的触觉和运动技能之间存在密切关系。
