I hear movements: why motor brain regions are active when we listen to musical rhythms

我听到运动：为什么当我们听到音乐节奏时运动脑区域会活跃

• 批准号: RGPIN-2015-04299
• 负责人: Chen, Joyce
• 金额: $ 2.11万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=708471
• 关键词: hear; movements; why; motor; brain

Sounds and movements are intimately linked. Who has not experienced the urge to tap to the beat of a marching band, or sway their hips to a samba tune? Even babies spontaneously move their bodies with music before they can crawl or walk, and a cockatoo named Snowball can tap his feet in time with a popular tune. Music has also been harnessed to help people with brain injury move again. Currently, however, there is no explanation for why listening to music compels us to move. To gain insight into this mystery, my research will discover how the brain links sounds and movements. Rhythm is the key driving force in music with which we coordinate our movements. Our novel research will study healthy adults to understand why brain regions controlling movements are active even when we listen to musical rhythms without the conscious intention to move. First, we will demonstrate the link between sounds and movements: hearing rhythmic sounds is what makes us want to move and activates brain regions that control movements, not seeing rhythmic patterns such as a bouncing ball. Second, we will reveal brain regions controlling movements are active because they are simulating movements to help us predict the timing of sounds such as the beat or pulse in music. This may consequently facilitate our desire and ability to move synchronously (i.e. on the beat) with music. Knowledge of what these movement brain regions are doing when we hear musical rhythm will help us better understand how they control movements, and shed light on the commonplace phenomenon of why humans are compelled to move when we hear music. This work will also contribute to a deeper understanding of how our brain integrates sound with movements, which may reveal insights into why music-related rehabilitation therapies can promote recovery of movements after brain injury. The proposed research will further enhance Canada as an international leader in research on music and the brain. Understanding phenomenon such as why we move when we hear music is a fascinating way to understand how our brain functions. This knowledge will help us understand how we process language, music and dance, faculties that engage sounds and movements, and lie at the heart of human culture.

声音和动作是紧密相连的。谁没有经历过跟着军乐队的节拍打拍子，或者随着桑巴舞的曲调摇摆臀部的冲动呢？甚至婴儿在会爬或走路之前，也会自发地随着音乐移动身体，一只名叫雪球的鹦鹉可以随着流行的曲调及时地拍打自己的脚。音乐也被用来帮助脑损伤的人再次移动。然而，目前还没有解释为什么听音乐会迫使我们移动。为了深入了解这个谜团，我的研究将发现大脑如何将声音和动作联系起来。 节奏是音乐中的关键驱动力，我们用它来协调我们的动作。我们的新研究将研究健康的成年人，以了解为什么控制运动的大脑区域即使在我们听音乐节奏而没有有意识地移动时也会活跃。首先，我们将展示声音和运动之间的联系：听到有节奏的声音会让我们想要运动，并激活控制运动的大脑区域，而不是看到有节奏的模式，如弹跳的球。其次，我们将揭示控制运动的大脑区域是活跃的，因为它们正在模拟运动，以帮助我们预测声音的时间，如音乐中的节拍或脉冲。这可能因此促进我们的愿望和能力与音乐同步（即节拍）。当我们听到音乐节奏时，这些运动大脑区域在做什么的知识将帮助我们更好地理解它们如何控制运动，并揭示为什么人类在听到音乐时被迫移动的常见现象。这项工作还将有助于更深入地了解我们的大脑如何将声音与运动相结合，这可能揭示为什么音乐相关的康复治疗可以促进脑损伤后运动的恢复。 这项拟议中的研究将进一步加强加拿大在音乐和大脑研究方面的国际领先地位。理解一些现象，比如为什么我们听到音乐时会动，是理解我们大脑功能的一种有趣的方式。这些知识将帮助我们了解我们如何处理语言，音乐和舞蹈，以及参与声音和运动的能力，并位于人类文化的核心。