Bimanual coordination dynamics in adults with Down syndrome.
Bimanual coordination dynamics in adults with Down syndrome.
复制标题
唐氏综合症成人的双手协调动力学。
DOI：
10.1123/mcj.6.4.388
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发表时间：
2002
期刊：
影响因子：
1.1
通讯作者：
Weeks,DanielJ
中科院分区：
文献类型：
--
作者：
RobertsonRingenbach,ShannonD;Chua,Romeo;Maraj,BrianKV;Kao,JamesC;Weeks,DanielJ
先前涉及离散单手任务的实验表明，患有唐氏综合症（DS）的个体存在听觉/语言运动缺陷。本研究调查了成人退行性椎体滑移患者的单手和双手连续知觉运动动作。10名成人DS患者、10名正常成人和10名儿童分别用双手和单手在增加的周期内画连续的圆圈。运动由视觉或听觉节拍器来定节奏。结果显示，对于圆形和协调性测量，儿童和成人使用视觉节拍器更准确，而成人DS患者使用听觉节拍器更准确。在非手动任务中，成人退行性痴呆患者在空间测量上表现出手部不对称。然而，在手工任务中，成人退行性障碍的同相协调模式和稳定性更接近成人而非儿童。这些结果表明，成人退行性椎体滑移患者的双手协调功能是有效的，尽管手部不对称在单手动作中很明显。
Previous experiments involving discrete unimanual tasks have shown that individuals with Down syndrome (DS) have auditory/verbal-motor deficits. The present study investigated unimanual and bimanual continuous perceptual-motor actions in adults with DS. Ten adults with DS, 10 typical adults, and 10 children drew continuous circles at increasing periods bimanually and unimanually with each hand. Movement was paced by either a visual or an auditory metronome. The results revealed that for circle shape and coordination measures, children and adults were more accurate with the visual metronome, whereas adults with DS were more accurate with the auditory metronome. In the unimanual tasks, adults with DS displayed hand asymmetries on spatial measures. In the bimanual task, however, adults with DS adopted an in-phase coordination pattern and stability more similar to adults than children. These results suggest that bimanual coordination in adults with DS is functioning effectively despite hand asymmetries evident in unimanual performance.