计算障碍儿童缺陷机制- - 数字心理表征缺陷的干预应答研究

项目名称： 计算障碍儿童缺陷机制- - 数字心理表征缺陷的干预应答研究

项目编号： No.81202226

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 预防医学、地方病学、职业病学、放射医学

项目作者： 余晓敏

作者单位： 华中科技大学

项目金额： 22万元

中文摘要： 计算障碍是儿童学习困难的主要类型之一,发生率为6%左右。儿童计算能力低下将持续终生，并在不同年级表现出不同症状，对个体的学习和发展造成不良影响。目前研究表明，儿童计算障碍的核心缺陷可能是数字心理表征的异常，但尚缺乏干预型实证研究。本课题设计基于干预-应答型理论，拟采用病例对照重复测量的研究方法，运用ERP（事件相关电位）技术实时监测，分别测量认知训练前后，计算障碍儿童数字心理表征距离与顺序效应的变化特征，目的在于从脑机制层面探明认知训练在干预儿童计算障碍中的作用，并进一步验证数字心理表征缺陷理论的准确性，为完善计算障碍的病因理论提供依据。

中文关键词： 数学学习困难；数字心理表征；病例对照研究；事件相关电位；

英文摘要： Dyscalculia is one main type of learning disabilities that can affect school-aged children, the prevalence of which is about 6%. Dyscalculia is a life-long problem; the manifestations of which generally change with age and grade. Therefore, it significantly affects individual's learning and development. Present researches suggest that the core deficit in dyscalculia lies in abnormality in mental number representation and a lack of empirical research on intervention. Based on the theory of response to intervention, adopting case-control repeated measurements study methods, the present research will measure the changes on aspects of mental number representational distance and order effect of dyscalculia children before and after the cognitive intervention training with simultaneously ERP (event-related potentials) monitoring technology. The purposes of the present study are: to explore the effects of cognitive training on the intervention of dyscalculia in children with it from brain mechanism point of view; to further validate the accuracy of mental number representation deficit theory; and finally, to lay the basis for the perfection of etiological theories of dyscalculia. Furthermore, the data from the ERP measures would provide more objective physiological indicators for the diagnosis of dyscalculia in child

英文关键词： Dyscalculia；Digital mental representation；Case-control study；ERP(event-related potentials)；