期刊
JOURNAL OF NEUROSCIENCE METHODS
卷 162, 期 1-2, 页码 287-292出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jneumeth.2007.01.006
关键词
motor unit; timing; frequency; respiration; locomotion
The neural control of important rhythmical processes such as breathing and locomotion is complex. It is often necessary to depict the activity of motor (or other) units throughout the cycles. We describe and illustrate a novel method that displays visually seven key variables in a single figure related to the timing and frequencies of the discharge of single motor units. This time-and-frequency plot (TAFPLOT) displays the recruitment time, time of peak discharge frequency and derecruitment time, as well as the onset, peak, and final firing frequencies of each motor unit in a population. The frequency of any tonic firing is also displayed. Using the TAFPLOT it is easy to identify the presence or absence of coordinated activity within and between different motoneuron pools. The method is used to illustrate novel differences in the discharge behavior between populations of single motor units innervating the human diaphragm and genioglossus muscles. This new display provides a simple, qualitative and quantitative tool to study the neural control of rhythmical or repetitive motor tasks. (C) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据