Read the following text carefully and then translate the underlined segments into Chinese. 
      Developing a taste for classical music could improve your intelligence at least for a short while. But don’t listen while you work, according to the center for the neurobiology of learning and memory at the University of California, or you could overload your neurons. The conclusions are the results of studying the IQs of 36 college students before and after they had listened to a variety of audio tapes. 11) Those who listened to a Mozart piece experienced a temporary IQ boost compared to those who had heard either a relaxation tape or nothing at all. Researcher Frances Researcher who led the study says that the results were conclusive beyond any doubt. 
      12) Tests were designed to measure one particular aspect of intelligence-spatial ability. And a typical example would be to imagine how a piece of paper with complies folds would look when unfolded. All 36 students completed the exercise several times, following a period of silence, after listening to a relaxation tape or after listening to a recording of Mozart’s Sonata in D major for two pianos. 13) The IQ improvements were so marked that Researcher estimates the odds of it happening by chance are only two in a thousand. lots of unanswered questions remain. The team still does still does not know how long the effect tastes. All that can be said is that it is less than 25 minutes. 
      Why Mozart boosts IQ is also a mystery. The only hypothesis is that the neuronal firing patters of the brain in both music and in abstract reasoning skills are similar. So if those firing patterns are stimulated by listening to music, then they will be more ready to perform the sort of skills needed for spatial talks. Researcher believes that Mozart is particularly good because the music has a complex structure and is therefore more effective in exercising the relevant parts of the brain. 14) She is now about to undertake experiments to demonstrate another hypothesis: that dull, thumping . repetitive music dulls the reasoning powers. Eventually the California research team lans to carry out studies to find out if a person’s taste in music affects the results, and whether musicians differ from nonmusicians.
      15) one thing is already abundantly clear: you can not boost your performance at any task requiring abstract thought if you listen to music at the same time. The reason is quite simple that the marvel pathways become overloaded trying to perform two similar functions in parallel. So the next time someone claims their irritating tzz-t-t-tzz-t-t-tzz personal stereo is helping them concentrate, you can now offer at least two good reasons why it won’t.

解析：
11.同听轻松音乐或什么音乐也没听的学生相比，那些听了莫扎特乐曲的学生的智商暂时有所提高。
12.设计的实验是测量智力的一个特殊方面――空间想象力。典型的例子是让你想象一张折叠复杂的纸展开后会是什么样子。
13.因听古典音乐而智商提高很明显，罗斯切估计偶然因素引起的差异率只有千分之二。
14.她现在准备作实验来证明另一个假说：枯燥低沉不断重复的音乐会使人的推断能力变得迟钝。
15.有一点很清楚，那就是当你听音乐的时候，你不可能出色地完成需要抽象思维能力的工作。