Time-frequency analysis of movement-related spectral power in EEG during repetitive movements: a comparison of methods.
Time-frequency analysis of movement-related spectral power in EEG during repetitive movements: a comparison of methods.
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DOI：
10.1016/j.jneumeth.2009.10.022
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发表时间：
2010-01-30
影响因子：
3
通讯作者：
MacKinnon, Colum D.
中科院分区：
文献类型：
--
作者：
Allen, David P.;MacKinnon, Colum D.
关键词：
在动态自主运动中，同步神经元活动产生的α-和β-带的能量以一种时间锁定运动开始的方式进行调节。这些信号可以用脑电图很容易地从头皮表面记录下来。这些振荡的幅度和时间异常存在于各种运动障碍中，包括帕金森病和肌张力障碍。大多数研究都是在单个离散运动的背景下检查运动相关的振荡，但在重复运动的表现中经常看到明显的损伤。由于这个原因，有相当多的分析方法，可以解决调制这些振荡在频率和时间域。目前，对于哪一种方法最适合这一目的，几乎没有达成共识。在本文中，比较了常用的时频方法，以分析在重复运动中的运动相关功率在α和β-波段。然而，同样的原则也适用于大脑中任何形式的重复或有节奏的输入输出过程。重点讨论了基于带通滤波、短时傅里叶变换、连续小波变换和减少干扰分布的方法。利用模拟和实验数据，说明了每种方法在光谱或时间分辨率方面的相对优点和局限性。研究表明，STFT提供了光谱和时间分辨率之间的最佳折衷，因此是分析和解释健康和疾病中重复性运动相关振荡的最合适方法。(250字)
During dynamic voluntary movements, power in the α-and β-bands resulting from synchronized neuronal activity is modulated in a manner that is time-locked to movement onset. These signals can be readily recorded from the scalp surface using electroencephalography. Abnormalities in the magnitude and timing of these oscillations are present in a wide variety of movement disorders including Parkinson’s disease and dystonia. Most studies have examined movement-related oscillations in the context of single discrete movements, yet marked impairments are often seen during the performance of repetitive movements. For this reason, there is considerable need for analysis methods that can resolve the modulation of these oscillations in both the frequency and time domains. Presently, there is little consensus on which is the most appropriate method for this purpose. In this paper, a comparison of commonly used time-frequency methods is presented for the analysis of movement-related power in the α-and β-bands during repetitive movements. The same principles hold, however, for any form of repetitive or rhythmic input-output processes in the brain. In particular, methods based on band-pass filtering, the short-time Fourier transform (STFT), continuous wavelet transform and reduced interference distributions are discussed. The relative merits and limitations in terms of spectral or temporal resolution of each method are shown with the use of simulated and experimental data. It is shown that the STFT provides the best compromise between spectral and temporal resolution and thus is the most appropriate approach for the analysis and interpretation of repetitive movement-related oscillations in health and disease. (250 words)
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DOI：
10.1109/assp.1989.28057
发表时间：
1989-06-01
期刊：
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING
影响因子：
--
作者：
CHOI, HI;WILLIAMS, WJ
通讯作者：
WILLIAMS, WJ
影响因子：
4.3
作者：
BOHLIN, T
通讯作者：
BOHLIN, T
影响因子：
4.6
作者：
Arnold, M;Miltner, WHR;Braun, C
通讯作者：
Braun, C
DOI：
10.1073/pnas.89.12.5670
发表时间：
1992-06-15
影响因子：
11.1
作者：
MURTHY, VN;FETZ, EE
通讯作者：
FETZ, EE
影响因子：
8.6
作者：
Stegemoeller, Elizabeth L.;Simuni, Tanya;MacKinnon, Colum
通讯作者：
MacKinnon, Colum