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科学美国人60秒: 尽情摇摆

所属教程:科学美国人60秒科学系列 更新:01-18
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Brain Rhythms Sync to Musical Beat

尽情摇摆

While listening to music, you might find yourself tapping your foot or bobbing your head to the beat. What you might not have expected is that as you listen to your favorite tune, the rhythms in your brain also follow along.

你在听音乐时,可能会发现自己会随着节奏用脚打拍子、摇头晃脑。而意想不到的是,当自己沉迷于最爱的曲子时,旋律也在你的大脑中同步播放。

Brain rhythms arise when large groups of neurons fire together. Previous studies have shown that listening to someone talk can elicit such activity. Now research reveals that brain rhythms also synchronize with musical sequences. And musical training can enhance this ability. The study is in the Proceedings of the National Academy of Sciences.

大量的脑神经元同时活跃时,就会出现脑波律动。先前的研究表明倾听别人说话可以引发这种活动。现在的研究表明,脑波律动和音乐序列同步发生。同时进行音乐训练可以提高这种能力。该研究结果发表在《美国国家科学院院刊》。

Magnetoencelphalography, or MEG, is a technique that measures the tiny magnetic fields generated by brain activity. Researchers used MEG to compare the brains of musicians and non-musicians while the subjects tried to detect small changes in pitch during short clips of classical piano music by composers like Bach, Beethoven and Brahms. The trained musicians, not surprisingly, tracked the pitch changes better.

MEG技术,可测量大脑活动产生的微小磁场。研究人员使用MEG技术来比拟,音乐家以及非音乐人士的大脑。通过倾听巴特、贝多芬以及布拉姆斯等作曲家的简短的古典音乐片段,实验对象们试图识别音高的小变化。不出意外,受训的音乐家能更准确地跟踪音高的变化。

When it came to tempo, musicans and nonmusicians alike synched their brains to the music—when the music had more than one note per second. But when faced with slower tempos, only the brains of musicians synched up.

在节奏方面,音乐家和非音乐人士的大脑活动都能和音乐同步——此时音乐一秒内有多个音符。但是当节奏放缓时,只有音乐人士的大脑可以与音乐节奏同步。

Because speech and music share similar brain networks, it’s possible that musical training thus could also improve linguistic abilities. So pick up your instrument of choice and play away—you might not feel it, but your brainwaves will dance along to your favorite song.

因为语言和音乐共享相似的大脑区域,所以可以通过音乐训练也可以提高语言能力。所以,带上耳机,播放自己最爱的音乐——可能你感觉不到,但是你的脑波在随你最爱的歌曲舞动。

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