CAJ | 학술논문

目的探讨接受过和未接受过珠心算训练的儿童执行不同计算任务时枕叶激活情况的异同,并初步探讨枕叶的偏侧化现象.方法 17名接受过珠心算训练3年的儿童(训练组)和17名未接受过珠心算训练的儿童(未训练组)在执行加、减、乘、除运算及数物对照试验时行功能磁共振(fMRI)检查,应用SPM2软件对原始图像数据进行处理,对枕叶相关脑区进行定位,利用偏侧化指数(laterality index,LI)分析枕叶的偏侧化现象.结果珠心算训练组儿童在执行四种不同运算任务时运算正确率及反应时间均优于未训练组儿童,差异具有统计学意义(P＜0.01),未训练组儿童执行4种运算时枕叶LI分别为0.35,0.75,0.75,0.29,珠心算训练组儿童枕叶LI分别为-0.15,0.22,0.24,-0.06.结论珠心算训练能明显提高儿童的心算能力,对儿童脑开发有重要作用.珠心算训练组儿童枕叶偏侧化程度较末训练组儿童降低,有利于左右大脑半球平衡发展.
목적 탐토접수과화미접수과주심산훈련적인동집행불동계산임무시침협격활정황적이동,병초보탐토침협적편측화현상.방법 17명접수과주심산훈련3년적인동(훈련조)화17명미접수과주심산훈련적인동(미훈련조)재집행가、감、승、제운산급수물대조시험시행공능자공진(fMRI)검사,응용SPM2연건대원시도상수거진행처리,대침협상관뇌구진행정위,이용편측화지수(laterality index,LI)분석침협적편측화현상.결과 주심산훈련조인동재집행사충불동운산임무시운산정학솔급반응시간균우우미훈련조인동,차이구유통계학의의(P＜0.01),미훈련조인동집행4충운산시침협LI분별위0.35,0.75,0.75,0.29,주심산훈련조인동침협LI분별위-0.15,0.22,0.24,-0.06.결론 주심산훈련능명현제고인동적심산능력,대인동뇌개발유중요작용.주심산훈련조인동침협편측화정도교말훈련조인동강저,유리우좌우대뇌반구평형발전.
Objective To explore the activation on occipital lobe in children with and without abacus mental calculation training when they engaged in different calculation tasks with functional magnetic resonance imaging (fMRI).Then approach the laterality of occipital lobe in abacus mental calculation.Methods fMRI was performed in children trained with( trained group)and without( untrained group) abacus mental calculation( seventeen in each group) when they engaged in addition,subtraction,multiplication,division,and number-object control judging tasks.The data processing and statistical analysis of original image were performed on SPM 2.0 ( statistical parametric mapping 2.0) and the related-brain functional areas were obtained.The laterality index (LI) was used to assess the laterality of occipital lobe.Results The performance of the trained group with better correctness and shorter reaction time was much better than that of the untrained group (P＜0.01).The laterality degree of occipital lobe in the trained group (-0.15,0.22,0.24,-0.06 ) was lower than that of the untrained group (0.35,0.75,0.75,0.29).Conclusion Abacus mental calculation can obviously enhance the capacity of mental calculation.The laterality degree of occipital lobe in the trained group is lower than that of untrained group.It is conducive to the balanced development of bilateral cerebral hemisphere.