“易学灵”人机对话系统优化英语学困生脑机制的研究:来自事件相关电位P300的证据  

Optimizing the Brain Mechanism of Students with English Learning Disabilities Through the Enjoy Learning Human-Machine Dialogue System:Evidence from an Event-Related Potentials P300 Study

作　　者：官群[1] 张冲[2] 姚茹[2] 

机构地区：[1]北京科技大学外国语学院,北京100083 [2]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》2016年第6期65-72,共8页Chinese Journal of Special Education

基　　金：张冲主持的国家社会科学基金青年项目"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)阶段性成果

摘　　要：英语学习困难在我国存在普遍性和严重性,对英语学困生的干预和矫治已成为研究者亟待研究的课题。本研究使用国家专利产品"易学灵"(Enjoy Learning)人机对话系统对英语学困生进行为期三个月的干预。这一人机对话系统是国内第一个将计算机游戏与行为认知能力提升结合人机对话系统,获得我国技术专利,专利号:ZL2012 2 0181187.4。本研究采用实验组对照组前测后测设计,将32名初一英语学困生分为同质的两组,训练组接受历时一个学期的每天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任务的注意力集中的脑电测试。在行为测验进步显著基础上,进一步以事件相关电位P300成分为脑电指标评估脑机制干预效果。结果发现,训练组的后测P300潜伏期比前测显著缩短,而对照组前后测P300潜伏期则无显著差异,表明"易学灵"人机对话系统能够提高英语学困生的信息加工效率。本研究利用P300来衡量认知水平经过干预研究之后是如何提升的。这是脑神经认知科学与人机交互课程培训的最新结合创新型的研究。At present, English learning disabilities have become a universal and serious problem in China,and it is urgently needed to study the intervention and treatment of students with English learning disabilities. This study, by using a national patent product （the Enjoy Learning System）, a human-machine dialogue system （Patent number ZL2012 20181187.4）, conducted a three-month intervention among students with English learning disabilities. A total of 32 students with English learning disabilities were categorized into two cohort groups： the training group received a 30-minute training per day with the Enjoy Learning System, whereas the control group did normal learning as usual. Before and ＇after the training, the two groups were examined with the P300 ERP indicator in a visual oddball task. The researchers examined the significant results from the behavioral tests, and evaluated the changes in the magnitude and latency by means of the P300 component of the event-related potentials. The results showed that the training group revealed a significantly shorter latency of P300 in the pest-test than in the pre-test, whereas the control group revealed no significant difference in the pre-test and post-test. This indicates that the Enjoy Learning System can help improve the efficiency in information processing by the students with English learning disabilities. This research, which used the ERP indicators, such as P300, to explore how to improve cognition through interventions, reflects the latest innovative study combining cranial nerve cognition and human-machine interaction training.

关 键 词：“易学灵” 英语学困 脑机制 P300 

分 类 号：G844[文化科学—体育训练]