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首页> 外文期刊>Journal of Neuroscience Methods >A review of recent applications of cross-correlation methodologies to human motor unit recording.
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A review of recent applications of cross-correlation methodologies to human motor unit recording.

机译：互相关方法在人体运动单位记录中的最新应用综述。

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摘要

This article reviews some recent applications of time and frequency domain cross-correlation techniques to human motor unit recording. These techniques may be used to examine the pre-synaptic mechanisms involved in control of motoneuron activity during on-going motor tasks in man without the need for imposed and artificial perturbations of the system. In this review we examine, through several examples, areas in which insights have been gained into the basic neurophysiological processes that bring about motoneuron firing in man and illustrate how these processes are affected by central nervous system pathology. We will demonstrate that synchronization and coherence may be revealed between human motor unit discharges and give examples that support the hypothesis that these phenomena are generated by activity in a focused common corticospinal input to spinal motoneurons. Disruption of central motor pathways due to diseases of the nervous system leads to pathophysiological alterations in the activity of these pre-synaptic motoneuron inputs that can be revealed by cross-correlation analysis of motor unit discharges. The significance of these studies and outstanding questions in this field are discussed.
机译：本文回顾了时域和频域互相关技术在人体运动单元记录中的一些最新应用。这些技术可用于检查正在进行的人类运动任务期间控制运动神经元活动的突触前机制，而无需对系统施加强加或人为的干扰。在这篇综述中，我们通过几个例子研究了对人类运动神经元放电的基本神经生理过程有深入了解的领域，并说明了这些过程如何受到中枢神经系统病理学的影响。我们将证明人类运动单位放电之间可能揭示出同步性和连贯性，并举例说明支持以下假设的假说：这些现象是由活动的，在聚焦的普通皮质脊髓输入脊髓运动神经元中产生的。由神经系统疾病引起的中枢运动路径的破坏导致这些突触前运动神经元输入的活动发生病理生理学改变，这可以通过运动单位放电的互相关分析来揭示。讨论了这些研究的意义以及该领域的突出问题。

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