2012年10月9日 讯 /生物谷BIOON/ --在瑞典军队翻译学院,一些新兵们正在快速学习一种新的语言,通过测定其大脑在学习新语言的前后变化,研究者们检测到了其大脑在学习新型语言期间所发生的细微变化。研究结果表明,语言的学习可以促使大脑生长,相关研究成果刊登在了国际杂志NeuroImage上。
研究中,研究者将默奥大学学生作为对照(这些学生学习刻苦,但其不进行语言学习),研究组和对照组都进行了3个月的集中深入学习,在学习前后都进行MRI扫描,结果表明,对照组学生的大脑结构并没有发生变化,而语言学习组的学生大脑的特定部分出现了生长的现象,这个特定部位是大脑的海马体,其主要负责学习新事物和空间导向等能力。
研究者Johan表示,大脑海马体以及和语言学习相关的大脑皮层快速生长的学生相比其它学生有更强的语言学习技能,他们在学习语言上付出越多的努力,其大脑皮层的激动区域生长表现的越为明显。
曾经有研究表明,阿尔兹海默氏症患者学习两种语言或者多种语言表现出推迟的迹象,最后研究者表示,语言的学习或许是保持大脑功能及形状最好的方式了。
(生物谷Bioon.com)
编译自:Language Learning Makes the Brain Grow, Swedish Study Suggests
doi:10.1016/j.neuroimage.2012.06.043
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PMID:
Growth of language-related brain areas after foreign language learning
Johan Mårtenssona, , , Johan Erikssonb, Nils Christian Bodammerc, Magnus Lindgrena, Mikael Johanssona, Lars Nybergb, Martin Lövdéna, c, d
The influence of adult foreign-language acquisition on human brain organization is poorly understood. We studied cortical thickness and hippocampal volumes of conscript interpreters before and after three months of intense language studies. Results revealed increases in hippocampus volume and in cortical thickness of the left middle frontal gyrus, inferior frontal gyrus, and superior temporal gyrus for interpreters relative to controls. The right hippocampus and the left superior temporal gyrus were structurally more malleable in interpreters acquiring higher proficiency in the foreign language. Interpreters struggling relatively more to master the language displayed larger gray matter increases in the middle frontal gyrus. These findings confirm structural changes in brain regions known to serve language functions during foreign-language acquisition.