6—12岁儿童脑波超慢涨落功率与计算速度的关系

对176名6-12岁认知功能正常小学生进行脑波超慢涨落平均功率分布与计算速度关系的研究。结果表明：(1)计算速度快组和计算速度慢组中各年龄组的脑区平均功率符合额低枕高的前后梯度。计算速度慢组的逆转百分率高于计算速度快组。(2)在各年龄组中，计算速度快组和慢组功率前后逆转百分率的差异主要反映在右脑，右脑功率前后梯度逆转在不同计算组之间差异较大。(3)在计算速度快组和慢组中，左脑平均功率都小于右脑平均功率。计算速度快组和慢组脑波功率左右逆转百分率的差异主要反映在后脑，后脑功率左右逆转在逆转总数上计算速度快组多于计算速度慢组。

A STUDY ON THE DEVELOPMENTAL CHARACTERISTICS OF POWER ENCEPHALOFLUCTUOGRAPH AND ITS RELATIONSHIP WITH THE SPEED OF CALCULATION IN CHILDREN AGED FROM 6 TO 12

In the present study, 76 normal subjects (aged 6-12 years) were exam ined by ET. We focused on the speed of calculation and age related characteristics o f encephalofluctuograph. The results obtained were as follows: (1) In the group with fast performance of calculation test and the group with slow performance of calculation test, there were low power in the frontal area and high power in th e occiput area in the configuration of dominant power encephalofluctuograph in a ll age groups. The reverse percent in the group with slow performance was highe r than in the group with fast performance. (2) In all the groups of different ag e, the reverse percent in the group with fast performance was apparently lower t h an in the group with slow performance. The difference of the percent of the ante rior posterior reverse between the group with fast performance and the group wi t h slow performance was concentrated on the right brain hemisphere. (3) Both in t h e group with fast performance and in the group with slow performance, the power of the left hemisphere was fewer than that of the right hemisphere of dom inan t power in encephalofluctuograph between the two groups is concentrated on the p osterior area.