Vladimirova G
Research Paediatrics Institute, Medical Academy, Sofia, Bulgaria.
Acta Physiol Pharmacol Bulg. 1991;17(1):13-20.
Broad-band automated analysis was performed of the delta-, theta-, alpha- and beta EEG-rhythms from F3 and F4, C3, and C4, O1, and O2, T3 and T4 of healthy awake infants with open eyes. The data on the integrated amplitude of the above-mentioned rhythms were obtained in volt. sec. The age-determined changes in the mean values of this parameter were proved to be different in scope and in character. Generally speaking, the delta activity was not substantially changed in any of the areas indicated above at the end of the first year of life, compared with the first three months; the theta activity was substantially higher everywhere, with the exception of T3 and O2; the alpha activity was not increased only in T3 and T4, whereas the beta 1 activity was not increased in F3 and T3. Greatest changes were observed in the theta activity of the two central regions and O1, for the alpha activity--in the two occipital and the two central regions, for beta 1--generally in the right hemisphere. This state was attained predominantly through a gradual rise in the integrated amplitude of the respective rhythms, though there was also an abrupt development, mainly in the central and occipital regions.
对睁眼状态下健康清醒婴儿的F3、F4、C3、C4、O1、O2、T3和T4部位的δ、θ、α和β脑电节律进行了宽带自动分析。以上述节律的积分幅度数据以伏特·秒为单位获得。该参数平均值的年龄相关变化在范围和特征上被证明是不同的。一般来说，与出生后的前三个月相比，在一岁末时上述任何区域的δ活动都没有实质性变化；θ活动在除T3和O2以外的所有部位都显著更高；α活动仅在T3和T4没有增加，而β1活动在F3和T3没有增加。在两个中央区域和O1的θ活动、在两个枕叶和两个中央区域的α活动以及一般在右半球的β1活动中观察到最大变化。这种状态主要是通过相应节律积分幅度的逐渐升高实现的，不过也有突然的发展，主要发生在中央和枕叶区域。
