Rhythm information represented in the fronto-parieto-cerebellar motor system
Rhythm information represented in the fronto-parieto-cerebellar motor system
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DOI：
10.1016/j.neuroimage.2012.07.002
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发表时间：
2012-10-15
期刊：
影响因子：
5.7
通讯作者：
Nakamura, Katsuki
中科院分区：
文献类型：
--
作者：
Konoike, Naho;Kotozaki, Yuka;Nakamura, Katsuki
节奏是人类文化的基本要素，尤其是在语言和音乐中。为了获得语言或音乐，我们必须感知感官输入，将它们组织成结构化的序列作为节奏，积极地将节奏信息牢记在心，并在再现或模仿相同节奏时使用这些信息。先前的脑成像研究已经阐明了与节奏的感知和产生相关的脑区域。然而，涉及节奏的工作记忆的神经基质仍然不清楚。此外，我们对来自非听觉输入（视觉或触觉）的节奏信息的处理知之甚少。因此，我们通过功能性磁共振成像测量了健康受试者记忆和再现听觉和视觉节奏信息时的大脑活动。顶下小叶、额下回、辅助运动区和小脑在编码和提取节律信息时都表现出明显的激活。此外，这些区域中的大多数在维持节律信息的过程中也表现出显著的激活。所有这些区域都在处理听觉和视觉节奏中发挥作用。双侧顶下小叶、额下回、辅助运动区和小脑被认为对运动控制至关重要。当我们听到某种节奏时，我们经常受到刺激而移动身体，这表明节奏处理和运动系统之间存在强烈的相互作用。在这里，我们建议，节奏信息可以表示和保留的超模态运动脑系统中的身体运动的信息。(C)2012 Elsevier Inc. All rights reserved.
Rhythm is an essential element of human culture, particularly in language and music. To acquire language or music, we have to perceive the sensory inputs, organize them into structured sequences as rhythms, actively hold the rhythm information in mind, and use the information when we reproduce or mimic the same rhythm. Previous brain imaging studies have elucidated brain regions related to the perception and production of rhythms. However, the neural substrates involved in the working memory of rhythm remain unclear. In addition, little is known about the processing of rhythm information from non-auditory inputs (visual or tactile). Therefore, we measured brain activity by functional magnetic resonance imaging while healthy subjects memorized and reproduced auditory and visual rhythmic information. The inferior parietal lobule, inferior frontal gyms, supplementary motor area, and cerebellum exhibited significant activations during both encoding and retrieving rhythm information. In addition, most of these areas exhibited significant activation also during the maintenance of rhythm information. All of these regions functioned in the processing of auditory and visual rhythms. The bilateral inferior parietal lobule, inferior frontal gyms, supplementary motor area, and cerebellum are thought to be essential for motor control. When we listen to a certain rhythm, we are often stimulated to move our body, which suggests the existence of a strong interaction between rhythm processing and the motor system. Here, we propose that rhythm information may be represented and retained as information about bodily movements in the supra-modal motor brain system. (C) 2012 Elsevier Inc. All rights reserved.