Slow (0.7-2 Hz) and fast (2-4 Hz) delta components are differently correlated to theta, alpha and beta frequency bands during NREM sleep
Slow (0.7-2 Hz) and fast (2-4 Hz) delta components are differently correlated to theta, alpha and beta frequency bands during NREM sleep
复制标题
DOI：
10.1016/s1388-2457(00)00470-3
复制
发表时间：
2000-12-01
影响因子：
4.7
通讯作者：
Prado, J
中科院分区：
文献类型：
--
作者：
Benoit, O;Daurat, A;Prado, J
目的：40例整夜睡眠脑电图的频谱功率方法：采用基于15阶自回归模型的自相关方法，对20例健康青年人的Cz-Pz双极导联记录的30 s连续时相进行归一化处理后，计算其频谱参数（0.7-2 Hz）;快速delta（2-4 Hz）; theta（4-8 Hz）; alpha（8-12 Hz）; sigma（12-16 Hz）; β 1（16-35 Hz）;和β 2（>35 Hz）。强负相关性被发现之间的权力，在快速三角洲和阿尔法或β带和之间的缓慢三角洲和θ带，结论：δ波慢、快成分与其他频段的不同关系可能反映了δ波起源于皮层或丘脑皮层。(C)2000爱思唯尔科学爱尔兰有限公司保留所有权利。
Objectives: Spectral power of 40 all-night sleep EEGs (Cz-Pz bipolar lead) recorded in 20 healthy young subjects was calculated after normalization on 30-s consecutive epochs by means of an autocorrelation method based on a 15-order autoregressive model.Methods: The spectral parameters were calculated for the 7 main EEG bands: slow delta (0.7-2 Hz); fast delta (2-4 Hz); theta (4-8 Hz); alpha (8-12 Hz); sigma (12-16 Hz); beta1 (16-35 Hz); and beta 2 (>35 Hz).Results: Strong negative correlations were found between power in the fast delta and either the alpha or the beta bands and between slow delta and theta bands, whereas the two delta bands showed little correlation with each other.Conclusion: The possibility that theses different relationships of slow and fast delta components with other frequency bands might reflect the neocortical or the thalamocortical origin of the delta waves is discussed. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.