根据一则神经系统科学的期刊研究,年纪大的人中,从孩提开始就会讲两种语言的人似乎有更好的认知灵活性,也就是说,和只会讲一种语言的成人相比,他们在新的或者预期之外的情况下,表现得更加顺其自然。在这一研究中,两类人群都被要求完成一项考验认知灵活性的任务。虽然他们都可以完成,但会讲外语的人们完成得更快,而且他们大脑中的特定区域消耗了更少的能量。
Their brains stay sharper in old age.
他们年纪大时,脑袋更灵光。
And this is true even for people who learned a second language later in life, according to a recent study in the Annals of Neurology. The study involved following native English speakers who took an intelligence test when they were age 11, and then again when they were in their early 70s. People who spoke two or more languages had greater cognitive abilities -- particularly in general intelligence and reading -- from their baseline, compared with those who only spoke one language.
根据一则神经病学年鉴的研究, 甚至对于长大后晚些学外语的人,这一点也是适用的。研究追踪了母语为英语的人,他们11岁时做了智力测试的,到70多岁早期时又测一次。和只会讲一种语言的人相比,会讲两种及以上语言的人有更好的认知能力——尤其在广义的智力和阅读部分。
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