“易学灵”人机对话系统对数学学习困难学生的干预效果:来自事件相关电位P300的证据  

The Effect of the Man-Machine Dialog System of “Enjoy Learning”on Students with Mathematics Learning Difficulties:Evidence from the Event-Related Potentials P300

作　　者：姚茹[1] 张冲[1] 孟万金[1] 

机构地区：[1]中国教育科学研究院学习科学与创新实验室,北京100088

出　　处：《中国特殊教育》2015年第10期47-54,共8页Chinese Journal of Special Education

基　　金：张冲主持的国家社会科学基金"十二五"规划2013年度教育学青年课题"初中学习困难学生情绪智力对学业成绩的影响和干预研究"(批准号:CBA130122);姚茹主持的中国教育科学研究院2014年度基本科研业务专项基金:多元干预提升学困生选择性注意能力的脑电研究"(批准号:GY2014XDY102)的阶段性成果

摘　　要：数学学习困难影响6%~14%的学龄期智力正常儿童,对数学学习困难学生的干预和矫治已成为亟待研究的课题。本研究使用国家专利产品“易学灵”（Enjoy Learning）人机对话系统（批准号：ZL2012 2 0181187.4）对数学学习困难学生进行为期三个月的干预,在行为测验进步显著的基础上,进一步以事件相关电位P300成分为脑电指标评估干预效果。采用实验组对照组前测后测设计,将32名初一数学学习困难学生分为同质的两组,训练组接受每天30分钟的“易学灵”人机对话系统训练,对照组则只进行常规学习生活,不接受训练。训练前后,两组被试均接受视觉oddball任务的脑电测试。结果发现,训练组的后测P300波幅比前测显著降低、枕区潜伏期显著缩短,而对照组前后测P300波幅和潜伏期则无显著差异,表明“易学灵”人机对话系统能够提高数学学习困难学生的信息加工容量和信息加工效率。Since mathematics learning difficulties affect 6% - 14% of school-age children with normal intelligence, interventions and rehabilitation have become an urgent topic for study. This study, by using a national patent product, the Man-Machine Dialog System of ＂Enjoy Learning,＂ aims to assess the results of a three-month intervention in students with mathematics learning difficulties based on a behavior test and the EEG （electroen- cephalogram） indicator of the event-related potentials P300. A total of 32 students with mathematics learning difficulties were categorized into two groups： the training group received 30-minnte training per day with the Man-Machine Dialog System of ＂Enjoy Learning,＂ whereas the control group did normal learning as usual. Before and after the training, the two groups received an EEG test in a visual oddball task. The results show that the training group revealed a significantly lower P300 amplitude in the post-test than in the pre-test, and a significantly shorter latency in the occipital region, whereas the control group revealed no significant difference in the pre-test and post-test P300 amplitude and latency. This indicates that the Man-Machine Dialog System of ＂Enjoy Learning＂ can improve the information-processing capacity and efficiency. Key words ＂Enjoy Learning＂ mathematics learning difficulties brain mechanism P300

关 键 词：“易学灵” 数学学习困难 脑机制 P300 

分 类 号：B849[哲学宗教—应用心理学]