英语单词

听力入门英语演讲VOA慢速英语美文听力教程英语新闻名校课程听力节目影视听力英语视频

科学美国人: 熟悉的曲调能迅速激活大脑记忆

kira86 于2020-04-10发布 l 已有人浏览
增大字体 减小字体
大脑对于熟悉的旋律反应有多快?或许只要十分之一秒就能辨别出来。
    小E英语欢迎您,请点击播放按钮开始播放……

Familiar Tunes Rapidly Jog the Brain

熟悉的曲调能迅速激活大脑记忆

<> Remember scrolling through the radio dial, hoping a tune you liked would pop out of the static? You never had to listen long to know you'd landed on a hit. "Music has a really strong, remarkably strong hold on us. It's enough to be exposed to a very brief snippet of a familiar song for us to be able to recognize it."

还记得当你在收音机上调台时,希望有一首你喜欢的曲子突然播放出来吗?你不需要听很长时间就知道你找到那首熟悉的歌了。“音乐对我们的影响非常大,非常大。只要听一小段熟悉的歌曲,我们就能辨别出它。”

Maria Chait, an auditory cognitive neuroscientist at University College London. Chait and her team recently studied how quick that reflex is. They started by asking 10 volunteers to name a feel-good, familiar song... like this: <> Then, the researchers hand-picked a second tune that sounded similar, but was unfamiliar to the volunteer. < > They chopped both songs into tiny bits -- each less than a second long -- and then randomly interspersed them into a six-and-a-half-minute-long track of song snippets. <>

伦敦大学学院(University College London)的听觉认知神经学家玛丽亚·柴特(Maria Chait)表示到。柴特和她的团队最近研究了这种迅速反应能力到底有多快。他们首先让10名志愿者说出一首感觉良好、熟悉的歌曲,就像这样:(音乐片段)。然后,研究人员精心挑选了第二个听起来与之相似但对志愿者来说并不熟悉的曲调。(如:音乐片段)他们将两首歌都切成很小的片段,每一小段时长都不到一秒,然后随机地把它们穿插成一个六分半钟长的歌曲片段。(如片断)

As the snippets played, the scientists measured the volunteers' brain activity, via a network of 128 electrodes -- and monitored changes in pupil diameter, too... a sign of arousal. And the researchers found that the listeners' pupils dilated more rapidly when they heard familiar versus unfamiliar samples -- within just a tenth to a third of a second!

当这些片段播放时,科学家们通过128个电极的网络来测量志愿者的大脑活动,并监测瞳孔直径的变化,瞳孔变化是一种兴奋的信号。研究人员发现,相比听到不熟悉的样本,听者们在听到熟悉样本时的瞳孔放大得更快——仅需十分之一到三分之一秒!

Familiar tunes also triggered a two-step pattern of brain activation almost identical to that seen in other memory studies -- where the brain first recognizes something as familiar, and then retrieves more detailed information about it. That pattern was absent for unfamiliar songs, and for the control group.The results are in the journal Scientific Reports.

熟悉的曲调也触发了两步式的大脑激活模式,这与其他记忆研究中看到的几乎相同——在其他记忆研究中,大脑首先识别熟悉的事物,然后检索有关它的更详细的信息。这种模式在不熟悉的歌曲和对照组中是不存在的。研究结果发表在《科学报告》杂志上。

The study does have limitations -- it used a small number of songs; it was hard to mask the purpose of the study from the participants; and the control group ended up being primarily international students from Asia, since they had to be unfamiliar with every single song... so their native languages and music backgrounds differed from the experimental group, primarily students from a European background.

这项研究确实有局限性——它只使用了少量的歌曲;很难向参与者隐瞒研究的目的;而对照组最终主要是来自亚洲的国际学生,因为他们必须对每首歌都不熟悉,所以他们的母语和音乐背景与实验组不同,实验组主要是来自欧洲的学生。

Still, for clinicians who want to use music as a therapeutic tool for patients with dementia, for example, this study might provide a few clues:

然而,对于那些想要将音乐作为痴呆患者治疗工具的临床医生来说,这项研究可能会提供一些线索:

There's a lot of interest in trying to establish objective measures of music enjoyment, of music familiarity. And this paradigm might be useful in this context, because it doesn't require the participant to indicate anything. They just listen passively.Clinicians simply have to observe the neural fingerprints of hearing that same old song.

“人们对建立客观的音乐享受标准、音乐熟悉度测量标准很感兴趣。这个范例在这种情况下可能是有用的,因为这种测试不需要参与者指出任何东西。他们只是被动地倾听。”而临床医生只需要观察听到这首老歌的神经指纹。

 1 2 下一页

分享到

添加到收藏

英语新闻排行