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科学60秒:一心多用?你想多了

时间: 2020年05月19日 | 作者: Admin | 来源: 领研网(linkresearcher.com)


 [听力全文]


Modern humans are masters of multitasking. We eat while driving, watch TV while studying, and of course talk on our cell phones while doing, well, everything. How do we do it? A study in the July 16th issue of Neuron suggests that though we can train our brains to work faster as we juggle, we never actually manage to do more than one thing at a time. 


Our brains aren’t really built to handle the sort of parallel processing we think we’re capable of. The good news is: studies have shown that extensive training can make us better at doing two things at once. But how? 


One theory is that with lots of practice some routines become “automatic.” And if we don’t need to run every little thing past the part of the brain that’s spends time thinking about stuff, we can multitask just fine. 


But this new study finds that that’s not the way it works. Turns out that multitaskers still consult the prefrontal cortex, but training gets the “Thinking Brain” to think a little faster. So we’re switching tasks quickly enough to appear to be doing them simultaneously. Which is still nothing to shake a stick and sneeze at.


—Karen Hopkin



 [重难点词汇、短语]


juggle: v. 尽力同时应付



 [参考译文]


现代人都很善于一心多用:边开车边吃东西、边学习边看视频,当然还有边做任何别的事边打手机。我们是如何做到一心多用的呢?发表在《神经元》(Neuron)杂志上的一项研究表明,尽管我们可以训练自己的大脑在并行多项任务时转换得更快,但实际上我们从未真正做到同时做一件以上的事情。

 

我们自以为能并行处理不同的任务,但我们的大脑并不能真正做到这一点。好消息是:研究表明,大量的训练可以让我们更好地同时做两件事。但这是如何实现的呢?

 

一种理论是,通过大量的练习,一些常规的事情会变成“自动的”;有一部分大脑会花时间对事物进行思考,而如果我们不需要让每一件小事都经过这一部分大脑,我们就能同时处理多项任务。

 

但新的研究发现,大脑并不是这么运作的,实际情况是,一心多用时,人们的大脑前额叶仍然会“进行思考”,但训练会让“思考的大脑部分”思考得更快一些。所以我们切换任务的速度可以快到似乎是在同时进行这些事情。但这依然不是真正的一心多用哦。


翻译 页一