Alvarez Amador A, Valdés Sosa P A, Pascual Marqui R D, Galan Garcia L, Biscay Lirio R, Bosch Bayard J
Neurosciences Branch, National Center for Scientific Research, Havana, Cuba.
Electroencephalogr Clin Neurophysiol. 1989 Jul;73(1):10-9. doi: 10.1016/0013-4694(89)90015-1.
Two different descriptions of EEG maturation are compared: a broad-band spectral parameters (BBSPs) model and a recently developed xi-alpha (xi alpha) model. 'Developmental equations' were obtained for both parameter sets using 1 min, eyes closed EEG sample from 165 normal children (5-12 years old). At each age, the xi alpha parameter set described the average spectrum more closely than the BBSP developmental equations. Furthermore, a more detailed picture of changes of spectral shape with age is possible with the xi alpha model. A computer simulation illustrates the possible appearance of fixed frequency bands as a byproduct of inadequate statistical models.
比较了脑电图（EEG）成熟度的两种不同描述：宽带谱参数（BBSPs）模型和最近开发的ξ-阿尔法（ξ alpha）模型。使用来自165名正常儿童（5至12岁）闭眼状态下1分钟的脑电图样本，为这两组参数获得了“发育方程”。在每个年龄阶段，ξ alpha参数集比BBSP发育方程更能紧密地描述平均频谱。此外，ξ alpha模型能够更详细地呈现频谱形状随年龄的变化情况。计算机模拟说明了固定频段可能作为不充分统计模型的副产品出现。
