在非快速眼动睡眠期间，慢波（0.7 - 2赫兹）和快波（2 - 4赫兹）δ成分与θ波、α波和β波段的相关性有所不同。
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.
作者信息
Benoit O, Daurat A, Prado J
机构信息
Laboratoire d'étude du sommeil. Service d'Explorations Fonctionnelles, Hôpital Henri Mondor, 51 av. De Lattre de Tassigny, 94 010 Créteil, Cedex, France.
出版信息
Clin Neurophysiol. 2000 Dec;111(12):2103-6. doi: 10.1016/s1388-2457(00)00470-3.
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.
目的
对20名健康年轻受试者记录的40份全夜睡眠脑电图（Cz - Pz双极导联），通过基于15阶自回归模型的自相关方法，在连续30秒的时间段上进行归一化处理后，计算其频谱功率。
方法
计算7个主要脑电图频段的频谱参数：慢波δ（0.7 - 2赫兹）；快波δ（2 - 4赫兹）；θ波（4 - 8赫兹）；α波（8 - 12赫兹）；σ波（12 - 16赫兹）；β1波（16 - 35赫兹）；以及β2波（>35赫兹）。
结果
发现快波δ频段的功率与α或β频段的功率之间以及慢波δ频段与θ波频段之间存在强负相关，而两个δ频段之间的相关性很小。
结论
讨论了慢波和快波δ成分与其他频段的这些不同关系可能反映δ波的新皮层或丘脑皮层起源的可能性。
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