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1、珠心算儿童在额顶叶激活的fMRI研究国际医学放射学杂志InternationalJournalofMedicalRadiology2010Nov;33f6):511-514;544珠心算儿童在额顶叶激活的fMRI研究赵坤媛王滨龙金凤李丽新沈晓君论着【摘要】目的应用功能磁共振成像(fMRI)研究接受过和未接受过珠心算训练的儿童在进行加法和乘法时额顶叶激活区的差别,初步分析珠心算在儿童脑开发中的作用.方法分别对24名接受过3年珠心算训练和l2名未接受珠心算训练的儿童在加,乘计算和数物对照判断实验时进行BOLD—fMRI,应用SPM2软件对原始图像进行数据处理
2、,获取执行不同任务的脑功能图.结果训练组的正确率均明显高于未训练组.平均反应时均短于未训练组.珠心算组与未训练组在进行计算时额顶叶的激活区有明显的不同,珠心算组比未训练组在前额叶的激活脑区明显减少fP<0.05),而且顶叶的激活主要在顶上小叶后部/楔前叶,未训练组主要在顶下小叶.结论珠心算涉及多个脑功能区,各功能区可能在整体配合下完成任务,增强了特定脑区对信息的加工能力,有效提高脑区的利用效率,在儿童脑开发中起了重要的作用.【关键词】功能磁共振成像;珠心算;儿童;计算ThefMRIstudyonthefront—parietaIactivation
3、inabacusmentalcalculationtrainedchildrenZhaoKunyuan.WangBin,LongJinfeng,LiLixin,ShenXiaojun.MedicalImagingCenter,AffiliatedHospitalofWeifangMedicalCollege,Weifang261031,China【Abstract】0bjectiveToinvestigatethedifferenceinfront—parietalactivationbetweenthetrainedanduntrainedchildr
4、enengagedinadditionandmuhiplicationwithfunctionalmagneticresonanceimaging(fMRI),andtoexploretheroleofabacusmentalcalculationinbraindevelopment.MethodsTwenty—fourchildrentrainedwithabacusmentalcalculationandtwelveuntrainedchildrenperformedmentalcalculationtasksincludingaddition.nm
5、hiplicationandnumber—objectcontro1judgingtasks.Bloodoxygenationleveldependence(BOLD)fMR1wasperformedwhentheywerecalculating.AlldatawereanalyzedbySPM2(statisticalparametricmapping2)togeneratethebrainactivationmap.ResultsTheperformanceofthetrainedgrouphadbettercorrectnessandshorter
6、reactiontimethanthatoftheuntrainedgroup.Thefront—parieta1activationbetweentwogroupshadobviousdifierenee.Theactivationinvolved1esspreffontalcortexinthetrainedgroupthanintheuntrainedgrouprP<0.05).Theparietalactivationinthetrainedgroupwasmainlyintheposteriorsuperiorparietallobe/p
7、reeuneus.whereastheactivationareasfoeusedontheinferiorparietallobuleintheuntrainedgroup.ConclusionAbachsmentalcalculationinvolvesmultiplefunctionalareas.andtheseareasmayWOrktogetherasawholeinprocessingarithmeticproblems.Abacusmentalcalculationnotonlyenhancestheinformationprocessi
8、nginsomebrainareasandimprovestheutilizat
