Fein G, Galin D, Yingling C D, Johnstone J, Nelson M A
Electroencephalogr Clin Neurophysiol. 1984 Dec;58(6):517-8. doi: 10.1016/0013-4694(84)90041-5.
Good reliability was found in EEG spectra recorded during resting conditions in two studies 1-3 years apart in groups of adolescent dyslexic and control boys who were well screened for neurological, sensory and emotional disabilities. The studies used different equipment and analysis (FFT in study 1 vs. iterative digital bandpass filters in study 2). The central leads (C3 and C4) referenced to vertex were recorded in both studies. Pearson correlation coefficients were computed as reliability estimates for each spectral band separately for each group, for absolute and relative power and for eyes open and eyes closed recording conditions. For both groups and for all conditions, the absolute power reliabilities were above 0.71 for all bands except delta for which they were above 0.54. Reliabilities were more variable for relative power measures.
在两项间隔1至3年的研究中，对经过严格神经、感官和情绪障碍筛查的青少年诵读困难男孩组和对照男孩组在静息状态下记录的脑电图频谱进行了研究，发现可靠性良好。这两项研究使用了不同的设备和分析方法（研究1使用快速傅里叶变换，研究2使用迭代数字带通滤波器）。两项研究均记录了以头顶为参考点的中央导联（C3和C4）。分别计算了每组每个频谱带、绝对功率和相对功率以及睁眼和闭眼记录条件下的皮尔逊相关系数，作为可靠性估计值。对于两组和所有条件，除δ频段绝对功率可靠性高于0.54外，所有频段的绝对功率可靠性均高于0.71。相对功率测量的可靠性变化更大。
