如果你发现某段音乐一直在脑中不断重复，这就是所谓的“耳虫上脑”。耳虫现象一般发生在白天，但最近科学家发现，睡觉时耳虫也会在你脑中开启单曲循环模式，影响睡眠。
We're all familiar with songs getting stuck in our head while we're awake, but it turns out this can happen during sleep as well. A new study investigating the phenomenon indicates that earworms invading our brains at night could cause problems in getting to sleep and staying asleep.
我们在清醒时应该都有过歌曲旋律在大脑中挥之不去的经历，但事实证明，这种“耳虫”现象在睡觉时也会出现。针对这一现象的新研究表明，夜里“入侵”大脑的耳虫可能会导致睡眠问题，让人睡不安稳。
"Our brains continue to process music even when none is playing, including apparently1 while we are asleep," says neuroscientist Michael Scullin from Baylor University.
贝勒大学的神经科学家迈克尔·斯卡林说："即使外界没有播放音乐，我们的大脑也会继续处理音乐，包括睡觉的时候。”
He and colleagues used surveys of 199 people, as well as a sleep lab test involving 50 volunteers, to measure how listening to music before bedtime affects sleep. In particular, the team focused on catchy2 earworms, technically3 known as 'involuntary musical imagery'.
为了衡量睡前听音乐对睡眠的影响，斯卡林和同事们调查了199个人，并对50名志愿者开展了睡
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