Topographic mapping of rapid transitions in EEG multiple frequencies: EEG frequency domain of operational synchrony
Topographic mapping of rapid transitions in EEG multiple frequencies: EEG frequency domain of operational synchrony
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DOI：
10.1016/j.neures.2010.07.2031
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发表时间：
2010-11-01
影响因子：
2.9
通讯作者：
Fingelkurts, Andrew A.
中科院分区：
文献类型：
--
作者：
Fingelkurts, Alexander A.;Fingelkurts, Andrew A.
本文首次描述了多个EEG频率下快速转换过程（RTPs）通道间时间重合的时空映射现象。这表明，在不同的EEG通道中发现的多个EEG频率的RTPs可以反映不同的神经元组装执行的脑操作之间的切换过程。在这些EEG通道中发现的RTP之间的系统非随机时间重合可以反映功能（操作）同步性。然而，到目前为止，还没有研究检查在频域中不同EEG通道之间的系统RTPs同步的存在。因此，功能同步性的基础上精确（点到点）的时间重合的RTP发现在不同的EEG通道和替代数据的比较进行了估计。本研究的结果首次证明，非随机的时间重合的RTP在EEG多个频率存在闭着眼睛和睁开眼睛的条件。每一个州都有其独特的特点。在EEG频域（本研究）与EEG振幅和相位域（以前的研究）中发现的操作同步性的主要特点的相似性使我们能够得出结论，操作同步性是大脑活动中的普遍现象。因此，通常用经典的互相关和相干分析计算的皮层区域之间的相互作用模式可以用操作同步来补充。(C)2010年爱思唯尔爱尔兰有限公司和日本神经科学学会。All rights reserved.
This paper describes for the first time the phenomenon of spatio-temporal mapping of interchannel temporal coincidences of rapid transition processes (RTPs) in multiple EEG frequencies. It is suggested that RTPs in multiple EEG frequencies found in different EEG channels could reflect the process of switching between brain operations performed by different neuronal assemblies. Systematic non-random temporal coincidences among RTPs found in those EEG channels could reflect functional (operational) synchrony. However, until now there have been no studies examining the existence of systematic RTPs synchronization among different EEG channels in a frequency domain. Therefore functional synchrony based on precise (point to point) temporal coincidence of RTPs found in different EEG channels and comparison with surrogate data were estimated. Findings of the present study demonstrated for the first time that non-random temporal coincidence of RTPs in EEG multiple frequencies exist for both closed and open eyes conditions. Each of the states had its own distinguished peculiarities. Similarity of the main peculiarities of operational synchrony found in EEG frequency domain (the present study) with EEG amplitude and phase domains (previous studies) permitted us to conclude that operational synchrony is a universal phenomenon in brain activity. Therefore, patterns of interaction between the cortical areas, which are usually calculated with classical cross-correlation and coherence analysis, may be complemented with operational synchrony. (C) 2010 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.