Kashiwagi Mitsuru, Iwaki Sunao, Narumi Yoshifumi, Tamai Hiroshi, Suzuki Shuhei
Department of Developmental Brain Science, Osaka Medical College, National Institute of Advanced, Industrial Science and Technology, Osaka, Japan.
Neuroreport. 2009 Oct 7;20(15):1319-24. doi: 10.1097/WNR.0b013e32832f4d87.
We aimed to detect the mechanisms underlying clumsiness in children with developmental coordination disorder (DCD). A functional magnetic resonance imaging study of a visuomotor task was performed in 12 boys with DCD and 12 healthy boys (controls) (9-12 years old). They tracked a horizontally moving target by manipulating a joystick. With regard to the behavioural performance, DCD children were significantly less accurate than control children. The comparison of the activation maps showed that the brain activity in the left posterior parietal cortex and left postcentral gyrus was lower in the DCD children than in the control children. These results suggest that the dysfunction of these regions may be the neural underpinnings of impaired motor skill in DCD children.
我们旨在探究发育性协调障碍（DCD）儿童动作笨拙背后的机制。对12名患有DCD的男孩和12名健康男孩（对照组）（9至12岁）进行了一项关于视觉运动任务的功能磁共振成像研究。他们通过操纵操纵杆追踪水平移动的目标。在行为表现方面，DCD儿童的准确性明显低于对照组儿童。激活图的比较显示，DCD儿童左后顶叶皮层和左中央后回的大脑活动低于对照组儿童。这些结果表明，这些区域的功能障碍可能是DCD儿童运动技能受损的神经基础。
