数学学习困难儿童抑制控制能力的ERP研究  

An Event-Related Potential Study of Inhibition Control Ability in Children With Mathematical Learning Difficulties

作　　者：程大志[1] 陈春萍[1,2] 隋光远[1,3] 

机构地区：[1]浙江师范大学心理学系,金华321004 [2]中国科学院研究生院,北京100049 [3]东北师范大学心理系,长春130024

出　　处：《心理科学》2010年第3期715-718,721,共5页Journal of Psychological Science

摘　　要：使用事件相关电位技术,以阿拉伯数字和汉语数字的简单心算为任务,探讨三年级数学学习困难(MD)儿童与正常学业儿童对冲突信息加工的脑机制差异。行为数据的结果表明:与对照组相比,MD儿童对大小冲突条件的反应时差异不显著。事件相关电位数据显示:MD组N270的潜伏期大于对照组,两组被试在波幅上无显著差异。结果表明,MD儿童的执行功能不足,主要表现为抑制无关冲突信息能力较差。By using event-related potentials （ERP） in simple mental arithmetic tasks of Arabic numbers and Chinese numbers, this study explored the brain mechanism of preceding of conflict information in third grade children with mathematical learning difficulties （MD） as compared with children with normal achievement. The results of behavioral data showed that in the MD group, the reaction time of Chinese numbers was significantly longer than that of Arabic numbers, but the controls did not show any significant difference in a conflicting condition. ERP data showed that the latency of N270 in the MD group was longer than that of the control group, but there was no significant difference in the between-group amplitude. The present results suggested that MD children had deficits in the executive function and primarily in the ability to inhibit irrelevant and conflicting information.

关 键 词：数学学习困难 心算 抑制控制 事件相关电位 N270 

分 类 号：B842.3[哲学宗教—基础心理学]