Bastek R, Gille H G, Gruner P, Otto E, Ullsperger P
Act Nerv Super (Praha). 1976;18(3):244-54.
EEG signal from fronto-occipital derivation was recorded in 16 Ss during a mental performance test (modified "Konzentrations-Leistungs-Test" including four levels of performance). A balanced changer-over design was used. Interval histograms in four frequency bands (theta, alpha, beta-1 and beta-2 bands) were determined on the basis of peak detection. A total of 44 characteristics were derived and tested (multi-factor analyses of variance, multiple mean comparison and rank tests). Twenty eight of these characteristics were proved to be dependent on activation. In the visual information-processing performances chosen, it could be demonstrated that the intraindividual changes of the spontaneous EEG activity were related predominantly to the perceptual components of the performance. On the other hand, the influence of the performance rate and of the mental-arithmetic itself was of minor relevance. During higher activation an increase in the relative abudance of the theta-band activity was also observed.
在一项心理表现测试（改良的“注意力-表现测试”，包括四个表现水平）中，对16名受试者记录了额枕导联的脑电图信号。采用了平衡转换设计。基于峰值检测确定了四个频段（θ、α、β-1和β-2频段）的间隔直方图。共得出并测试了44个特征（方差多因素分析、多重均值比较和秩检验）。其中28个特征被证明与激活有关。在所选择的视觉信息处理表现中，可以证明自发脑电图活动的个体内变化主要与表现的感知成分有关。另一方面，表现速度和心算本身的影响相关性较小。在更高的激活状态下，还观察到θ频段活动相对丰度的增加。
