Campbell I G, Feinberg I
Psychiatry Service, VA Medical Center, Martinez, CA 94553.
Brain Res Bull. 1993;30(1-2):143-7. doi: 10.1016/0361-9230(93)90050-l.
The delta (1-4 Hz) EEG of nonREM (NREM) sleep was subjected to period/amplitude analysis in 10 Sprague-Dawley rats. During NREM sleep in the 12-h light period, average delta wave amplitude and delta wave incidence (halfwaves/min) both declined; the curves were biphasic with a plateau across hours 4-6. In contrast, the behavior of amplitude and incidence was strikingly different in dark period NREM sleep. At dark onset, amplitude increased sharply and remained at this elevated level without any significant trend across the 12 hours. Delta incidence was low at dark onset and increased with a strong linear trend. These data point to several experiments to test the mechanisms mediating the behavior of delta wave amplitude at the light-dark transition; they also bear on the homeostatic model of delta sleep.
对10只斯普拉格-道利大鼠非快速眼动（NREM）睡眠期的δ波（1 - 4赫兹）脑电图进行了周期/振幅分析。在12小时光照期的NREM睡眠期间，平均δ波振幅和δ波发生率（半波/分钟）均下降；曲线呈双相，在第4至6小时有一个平台期。相比之下，黑暗期NREM睡眠中振幅和发生率的表现则显著不同。在黑暗开始时，振幅急剧增加，并在12小时内保持在这一升高水平，没有任何显著趋势。δ波发生率在黑暗开始时较低，并呈强烈的线性趋势增加。这些数据指向了几个实验，以测试介导明暗转换时δ波振幅行为的机制；它们也与δ睡眠的稳态模型相关。
