Compared that data to reported changes in fluid intelligence over a six-year period.

将这些数据与六年来报告的流动智力变化进行了比较。

There are two types of intelligence: crystallized intelligence and fluid intelligence.

智力可以分为两类：固定智力和流动智力。

Those participants also performed better on the fluid intelligence and creativity tests than the participants who weren't daydreamers.

与不做白日梦的参与者相比，做白日梦的参与者在流体智力和创造力测试中表现更好。

Specifically, they improved their performance on tests of so-called fluid intelligence, the ability to solve new problems and reason abstractly.

尤其是在液化智力（即解决新问题和抽象思维的能力）测试中，他们的表现有大幅度提升。

Now, studies show that there is something you can do to dramatically improve your fluid intelligence as well as your overall IQ: meditate.

如今，已经有许多研究发现了大幅度提高个人流动智力，乃至整体智力水平的方法，就是——冥想。

It's possible that kids who saw greater gains in fluid intelligence were those who started out at lower ability levels and simply had more room to improve.

那些液化智力有很大提高的孩子很可能一开始液化智力就很低，因此有很大的提升空间。

Initial evidence suggests that children who failed to increase their fluid intelligence found the exercise too difficult or boring and thus didn't fully engage with the training.

有初步证据表明，那些未能提高自身流动智力的孩子觉得这项训练难度太大或者太过无聊，因而无法完全投入到训练当中。

So psychologists generally think that for those without Alzheimer's or other kinds of dementia, growing old means losing some fluid intelligence while keeping crystallized knowledge.

因此，心理学家通常认为，对于那些没有阿尔茨海默氏症或其他类型痴呆症的人来说，变老意味着在保持固定知识的同时失去一些流动智力。

These participants also completed a questionnaire about daydreaming, and, once the researchers figured out how their brains worked, tests of executive function, fluid intelligence and creativity.

这些参与者还完成了关于白日梦的调查问卷，在研究人员了解他们大脑的运作机制后，他们还做了有关大脑执行功能、流体智力和创造力的测试。