心理科学
心理科學
심이과학
Psychological Science
2010年
1期
108~112
,共null页
王宏 程大志 陈春萍 裴燕红 隋光远
王宏 程大誌 陳春萍 裴燕紅 隋光遠
왕굉 정대지 진춘평 배연홍 수광원
数学学习困难 心算 数宇距离效应 事件相关电位 N270
數學學習睏難 心算 數宇距離效應 事件相關電位 N270
수학학습곤난 심산 수우거리효응 사건상관전위 N270
mathematical learning difficulties; mental calculation; numeral distance effect; event-related brain potential; N270
采用事件相关电位（ERP）方法，以阿拉伯数字的简单心算为任务，考察数学学习困难儿童（MD）的数字距离效应。行为数据的结果表明：MD组没有出现数字距离效应，对照组儿童出现了数字距离效应。事件相关电位数据显示：与对照组相比，MD组N270的潜伏期更长；两组被试在N270的波幅和潜伏期上都没有表现出数字距离效应。研究结果表明：MD儿童对数量信息的空间表征存在缺陷。
採用事件相關電位（ERP）方法，以阿拉伯數字的簡單心算為任務，攷察數學學習睏難兒童（MD）的數字距離效應。行為數據的結果錶明：MD組沒有齣現數字距離效應，對照組兒童齣現瞭數字距離效應。事件相關電位數據顯示：與對照組相比，MD組N270的潛伏期更長；兩組被試在N270的波幅和潛伏期上都沒有錶現齣數字距離效應。研究結果錶明：MD兒童對數量信息的空間錶徵存在缺陷。
채용사건상관전위（ERP）방법，이아랍백수자적간단심산위임무，고찰수학학습곤난인동（MD）적수자거리효응。행위수거적결과표명：MD조몰유출현수자거리효응，대조조인동출현료수자거리효응。사건상관전위수거현시：여대조조상비，MD조N270적잠복기경장；량조피시재N270적파폭화잠복기상도몰유표현출수자거리효응。연구결과표명：MD인동대수량신식적공간표정존재결함。
Using event-related potential （ERP） in simple mental calculation tasks of Arabic numerals, this study investigated the numeral distance effect in children with mathematical learning difficulties. The data of behavioral data indicated that the MD group did not display the numeral distance effect, whereas the control group showed numeral distance effect. Event-related brain potential data showed that compared with the control group, the latency of N270 in MD was much longer. Both groups did not show numeral distance effect in latency and amplitude of N270 and P300. The present results suggested that children with MD might have difficulties spatially representing number magnitude.
