学龄儿童手写量化评估方法及应用研究

Handwiting has a profound impact on children's cognition and perception development. Currently, it lacks an effective means for the diagnosis of the children's cognitive impairment, writing disorders and other important diseases. The key factor is the deficiency of a broadly representative sample database and an effecitve quantitive assessment method. Therefore, based on the physical meaning of the handwriting movement, the school-aged Children Handwriting Movement Database(sCHMD) is firtly established by designing appropriate children's handwriting tasks to get a comprehensive children handwriting motion information, especially children handwriting force vector information under the guidance of the structural features of the chinese charaters and children 's motor skills. Then, we will analysis the kinematic and kinetic features extracted from the sCHMD, and research the quantitative assessment methods and rating scale for the school-age children handwriting. After that，an application reseach is carried out to evaluate the regional disease impact on children's cognitive abilities under the tasks of regional disease prevention and control. This study is not only to provide the sCHMD for relevant studies, but also to present an effective quantitative assessment methods for the study of school-aged children handwriting ability. As a result, a new technical means is presentd for the reseach of children handwriting dyskinesia and fine moter control disorders. Meanwhile the basic data and tools are provided for children's cognitive ability, brain function remodeling and other applied research.

手写对学龄儿童的认知能力发育和知觉的完整性发展至关重要，但目前在儿童认知障碍、书写困难等重要疾病的诊断中缺乏健康儿童群体的系统样本数据和有效的量化评估手段。为此，本研究通过分析儿童手写特点和汉字结构特征，实现对健康学龄儿童的手写数据采集，并利用手写力矢量信息构建量化评价指标，用于学龄儿童书写能力的定量评估和诊断。通过设计面向健康学龄儿童的手写全信息获取实验，基于手写的动力学模型，构建学龄儿童手写数据库；采用特征提取和特征评估方法，实现学龄儿童手写量化评价指标和定量评估量表的设计；在此基础上，结合学龄儿童手写量化评价方法，分析地区性疾病对儿童认知能力的影响。所构建的儿童书写样本数据库及量化评估方法，将为儿童书写困难、精细运动障碍以及儿童智力发育等研究提供新的技术手段，并为儿童手写认知能力的训练康复等方面应用研究提供基础数据与工具。

在对现有学龄儿童手写运动技术分析基础上，本项目结合手写运动的物理过程模型，基于自主设计的手写平台，实现对学龄儿童手写运动的全信息获取，建立健康学龄儿童群体的手写运动数据库，并在此基础上，进一步构建描述学龄儿童手写运动特点的特征集。本项目主要研究内容包括：.(1).手写实验方案的设计；在临床医师的指导下，结合儿童认知及其动作技能.的发展特点，设计相应的手写实验方案，特别是手写动力学实验方案的设计。在硬件上，完成了基于移动端的手写信息采集设备的设计，以完整的获取学龄儿童手写运动中的手写特征数据。.(2).构建学龄儿童手写数据库；基于手写的动力学模型，通过对学龄儿童手绘.横线、竖线和圆圈的实验样本采集，建立健康学龄儿童群体的手写运动数据库，为学龄儿童手写运动研究提供公用的数据源。.(3).儿童手写量化评价指标和定量评估方法的设计；主要研究了手写运动分析中.特征提取的方法。在手写稳定性评估的研究的实验中，手写水平较高组儿童和手写水平较低组儿童间的差异显著性检验表明，匹配路径特征以及改进的匹配距离特征具有显著的组间差异。另外，对手写水平较高组儿童和手写水平较低组儿童，提取手绘圆样本特征向量进行手写量化分类的研究，验证了模式识别方法用于儿童手写运动量化评估的有效性，为儿童手写运动障碍评估提供了有效的技术手段。.项目组超额完成了原合同计划内容，相关研究成果发表论文6篇，其中SCI、EI收录3篇，授权发明专利1项，申请公开发明专利2项，软件著作权6项。本项目培养博士研究生5名和硕士研究生3名。