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学习言语有助于大脑发育

时刻: 2013年03月01日 | 作者: | 来历: 举世

 

 

    学习一门新的言语有助于拓展视野,而家现在还发现,学言语有助于大脑某些区域的成长发育。

    研讨人员对瑞典武装部队翻译学院的学生进行了脑部研讨,要求学生们以极快的速度学习外语,大部分人需求在13个月后流利运用阿拉伯语、俄语以及波斯方言达理语进行沟通。随后将这些学生的大脑同医生的大脑进行比照,医生也相同需求在短时刻内把握很多的常识,只不过这些常识与言语无关。

    学习言语的学生,其大脑海马区和部分大脑皮层呈现了显着的成长痕迹。而医生的大脑则没有呈现显着改变。该项研讨的成果宣布在《神经印象》(NeuroImage)上。

    风趣的是,在把握了更多言语技巧、具有更高言语才干的言语学家的大脑中,海马区和与言语有关的大脑皮层部分也发育得更好。而关于那些需求支付极大尽力才干进步言语成果的学生而言,家发现,他们大脑皮层的运动区发育得更好。大脑中哪些区域发生改变以及改变多少,都与一个人学习言语的困难程度相关。但终究为什么会这样,现在还不是很清楚。

 (举世 李想)

英文原文:
 
Studying Languages Can Grow the Brain
 
Researchers have found that people who study languages tend to show significant growth in certain areas of the brain.
Learning a new language can grow one’s perspective. Now scientists find that learning languages grows parts of the brain.
Scientists studied the brains of students in the Swedish Armed Forces Interpreter Academy, who are required to learn new languages at an alarmingly fast rate. Many must become fluent in Arabic, Russian and the Persian dialect Dari in just 13 months. The researchers compared the brains of these students to the brains of medical students who also have to learn a tremendous amount in a very short period of time, but without the focus on languages.
The brains of the language learners exhibited significant new growth in the hippocampus and in parts of the cerebral cortex. The medical students’ brains showed no observed growth. The study was in the journal NeuroImage.
Interestingly, the amount of growth in the brains of the linguists correlated with better skills—so those with better language skills also experienced more growth in the hippocampus and areas of the cerebral cortex that relate to language. For other students who had to work harder to improve their language skills, the scientists found greater growth in the motor area of the cerebral cortex. Where and how much change take place in the brain are linked to how easily one picks up a language. But it remains to be seen why this is.