Surwillo W W
Behav Genet. 1977 Mar;7(2):161-70. doi: 10.1007/BF01066004.
Measures of central tendency, dispersion, skewness, and kurtosis of interval histograms of half wavelengths in the electroencephalogram (EEF) and performance on an auditory reaction time (RT) task were compared in seven pairs of male monozygotic twins aged 101-134 months and seven pairs of unrelated boys matched to the twins for age. Interval histograms were formed from measurements of 780 half waves taken from EEGs recorded from the left parietal-occipital derivation while subjects performed the RT task. Except in the case of the dispersion of the EEG distributions,the F ratios of within-pair variance in unrelated pairs to within-pair variance in twins were all statistically significant at the 0.05 level of confidence. Statistically significant intraclass correlations of means, medians, and modes of the histograms were found in the group of monozygotic twins but not in the sample of unrelated subjects. Intraclass correlations for dispersion, skewness, and kurtosis of the histograms and for RT were not significantly different from zero in either the twins or unrelated subjects. EEG findings suggested that the basic frequency of the brain's rhythmic electrical activity may be genetically determined; RT findings were inconclusive.
对7对年龄在101至134个月的男性同卵双胞胎以及7对与双胞胎年龄匹配的非亲属男孩，比较了脑电图（EEG）半波长区间直方图的集中趋势、离散度、偏度和峰度测量值，以及听觉反应时间（RT）任务的表现。区间直方图由在受试者执行RT任务时，从左侧顶枕导联记录的脑电图中获取的780个半波测量值形成。除了脑电图分布的离散度情况外，非亲属对中配对内方差与双胞胎中配对内方差的F比率在0.05置信水平上均具有统计学意义。在同卵双胞胎组中发现直方图的均值、中位数和众数具有统计学意义的组内相关性，但在非亲属受试者样本中未发现。直方图的离散度、偏度和峰度以及RT的组内相关性在双胞胎或非亲属受试者中均与零无显著差异。脑电图结果表明，大脑节律性电活动的基本频率可能由基因决定；RT结果尚无定论。
