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Science:人瞳孔有节奏感

标签:瞳孔 节奏感
摘要 : 即便你没有节奏感,你的瞳孔也会有。

 

即便你没有节奏感,你的瞳孔也会有。在一项最新研究中,神经科学家播放了来自西方音乐的击鼓模式,包括流行和摇滚乐中非常典型的节奏。同时,他们让志愿者把注意力集中到正在展示一项不相关的快节奏任务的电脑屏幕上。该任务涉及到尽可能快地按下空格键,从而对屏幕上的信号作出响应。

这些参与者不知道的是,音乐随机省略了一些强弱节拍。在播放音乐时,眼睛扫描仪追踪了受试者瞳孔的扩张程度。研究发现,当节奏下降一定的节拍时,参与者的瞳孔会放大,即便他们并未将注意力放在音乐上。

当瞳孔扩张到最大程度时,恰好是音乐中最突出位置的节拍(通常是一组重复的音符中首个重要节拍)被略过之时。研究人员在即将出版的《脑与认知》杂志上写道,此项研究表明,人们可能拥有一种自动的“层级节拍感”,即强拍和弱拍模式,来支配对音乐的期望。论文作者表示,或许人类的眼睛揭示了研究音乐和节拍在生活中所起重要作用的线索。

原文链接:

Did you miss that musical beat? Your pupils didn’t

原文摘要:

Even if you don’t have rhythm, your pupils do. In a new study, neuroscientists played drumming patterns from Western music, including beats typical in pop and rock, while asking volunteers to focus on computer screens for an unrelated fast-paced task that involved pressing the space bar as quickly as possible in response to a signal on the screen. Unbeknownst to the participants, the music omitted strong and weak beats at random times. (You can listen below for an example of a music clip they used. If you listen carefully, you can hear bass and hi-hat beats omitted throughout.) Eye scanners tracked the dilations of the subjects’ pupils as the music played. Their pupils enlarged when the rhythms dropped certain beats, even though the participants weren’t paying attention to the music.The biggest dilations matched the omissions of the beats in the most prominent locations in the music, usually the important first beat in a repeated set of notes. The results suggest that we may have an automatic sense of “hierarchical meter”—a pattern of strong and weak beats—that governs our expectations of music, the researchers write in the February 2017 issue of Brain and Cognition. Perhaps, the authors say, our eyes reveal clues into the importance that music and rhythm plays in our lives.

来源: Science 浏览次数:0

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