CAJ | 학술논문

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。
사용사건상관전위기술，이아랍백수자화한어수자적간단심산위임무，탐토삼년급수학학습곤난（MD）인동여정상학업인동대충돌신식가공적뇌궤제차이。행위수거적결과표명：여대조조상비，MD인동대대소충돌조건적반응시차이불현저。사건상관전위수거현시：MD조N270적잠복기대우대조조，량조피시재파폭상무현저차이。결과표명，MD인동적집행공능불족，주요표현위억제무관충돌신식능력교차。
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.