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Brain regions for number involved in the processing of vocabulary of months in Chinese

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Author:: No author available

Journal Title:: ACTA PHYSIOLOGICA SINICA

Issue:: 3

DOI:: 10.3321/j.issn:0371-0874.2009.03.005

Key Word:: 发展;名词月份;数字加工;语义加工;功能磁共振成像;顶下小叶

Abstract：为了探讨中文日期名词的认知加工特征,本实验采用功能磁共振成像(functional magnetic resonance imaging,fMRI)技术研究了19名中国人对月份名词加工的脑激活情况,并以纯数字加工任务和一般名词语义加工任务为实验对比条件.结果显示,月份名词加工任务与一般名词语义加工任务的激活脑区相减,得到左半球项下小叶(BA40)、前楔叶(BA7/19)、中央后回(BA2)、前扣带回(BA32)和右半球顶下小叶(BA40)、上顶叶(BA7)、颞上回(BA39)的激活,这些都是与数加工有关的脑区;而份名词加工任务与纯数字加工任务相减,得到双侧梭形回(BA18)和左侧枕叶下回(BA18)的额外激活,这是与语义加工有关的脑区.上述结果证明,月份名词加工同时具有语言加工与数字加工的双重特点,即中国人在进行日期名词加工的同时进行了语义加工与数的加工.该认知特点表明中文母语者在习得母语词汇的过程中可能已获得了对数的认知加工经验,从而影响中国人数学能力的发展进程.

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