唐氏综合征成人双手协调性的手性反转效应。
Reversal of handedness effects on bimanual coordination in adults with Down syndrome.
机构信息
Kinesiology Program, Arizona State University, Tempe, AZ 85287-0701, USA.
出版信息
J Intellect Disabil Res. 2011 Oct;55(10):998-1007. doi: 10.1111/j.1365-2788.2011.01457.x. Epub 2011 Aug 30.
BACKGROUND
Research on unimanual tasks suggested that motor asymmetries between hands may be reduced in people with Down syndrome. Our study examined handedness (as assessed by hand performance) and perceptual-motor integration effects on bimanual coordination.
METHODS
Adults with Down syndrome (13 non-right-handed, 22 right-handed), along with comparison groups of adults (16 non-right-handed, 21 right-handed) and children (15 non-right-handed, 22 right-handed) without Down syndrome, drummed with auditory, verbal and visual instructions.
RESULTS
In contrast to handedness effects in the children and adults without Down syndrome, right-handed participants with Down syndrome led more with the left hand, and had lower coordination stability than non-right-handed participants with Down syndrome.
CONCLUSIONS
The reversed handedness effect during bimanual coordination suggests a complex relationship between handedness and task requirements in adults with Down syndrome.
背景
单手任务的研究表明，唐氏综合征患者双手之间的运动不对称性可能会降低。我们的研究考察了利手（通过手部表现评估）和知觉运动整合对双手协调的影响。
方法
唐氏综合征成人（13 名非右利手，22 名右利手），以及无唐氏综合征的成人（16 名非右利手，21 名右利手）和儿童（15 名非右利手，22 名右利手）对照组，按照听觉、言语和视觉指令击鼓。
结果
与无唐氏综合征的儿童和成人的利手效应相反，唐氏综合征的右利手参与者更多地用左手引导，并且协调稳定性低于非右利手的唐氏综合征参与者。
结论
在双手协调过程中出现的相反的利手效应表明，唐氏综合征成人的利手与任务要求之间存在复杂的关系。
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