Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milano, Italy.
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milano, Italy.
Hum Mov Sci. 2019 Jun;65. doi: 10.1016/j.humov.2018.05.001. Epub 2018 May 8.
Drawing tests in children diagnosed with dyslexia and dysgraphia were quantitatively compared. Fourteen children with dysgraphia, 19 with dyslexia and 13 normally developing were asked to copy 3 figures: a circle, a square and a cross. An optoelectronic system allowed the acquisition of the drawing track in three-dimensions. The participants' head position and upper limb movements were measured as well. A set of parameters including movement duration, velocity, length of the trace, Range of Motion of the upper limb, was computed and compared among the 3 groups. Children with dyslexia traced the circle faster than the other groups. In the cross test, dyslexic participants showed a reduced execution time and increased velocity while drawing the horizontal line. Children with dyslexia were also faster in drawing certain sides of square with respect to the other groups.
对诊断为读写困难和书写障碍的儿童进行的绘图测试进行了定量比较。让 14 名书写障碍儿童、19 名阅读障碍儿童和 13 名正常发育儿童分别复制 3 个图形：圆形、方形和十字形。光电系统允许在三维空间中获取绘图轨迹。还测量了参与者的头部位置和上肢运动。计算并比较了三组之间的一组参数，包括运动持续时间、速度、轨迹长度、上肢活动范围。阅读障碍儿童画圆的速度比其他组快。在十字测试中，阅读障碍参与者在画横线时表现出用时减少和速度增加。与其他两组相比，阅读障碍儿童画正方形的某些边也更快。
