Franken P, Dijk D J, Tobler I, Borbély A A
Institute of Pharmacology, University of Zürich, Zürich-Irchel, Switzerland.
Neurosci Lett. 1994 Feb 14;167(1-2):89-92. doi: 10.1016/0304-3940(94)91034-0.
In view of the reports that in the human magnetoencephalogram, 40-Hz oscillations are more abundant in waking and REM sleep than in non-REM sleep, we performed a 24-h broad-band (0.25-64 Hz) spectral analysis of the electrocorticogram in unrestrained rats. Spectral power above 33 Hz was higher in waking and REM sleep than in non-REM sleep, and in the range of 6-38 Hz it was higher in REM sleep than in waking. Consistent frequency-specific changes in spectral power marked the transitions between vigilance states. The study demonstrates that the rat EEG exhibits state- and frequency-specific changes over a large frequency range.
鉴于有报告称，在人类脑磁图中，40赫兹振荡在清醒和快速眼动睡眠中比在非快速眼动睡眠中更为丰富，我们对自由活动大鼠的皮质电图进行了24小时宽带（0.25 - 64赫兹）频谱分析。清醒和快速眼动睡眠中高于33赫兹的频谱功率高于非快速眼动睡眠，而在6 - 38赫兹范围内，快速眼动睡眠中的频谱功率高于清醒状态。频谱功率中一致的频率特异性变化标志着警觉状态之间的转换。该研究表明，大鼠脑电图在很宽的频率范围内表现出状态和频率特异性变化。
