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学龄初期是指6～7岁到11～12岁的小学时期,此期儿童脑的重量在继续增加,已接近成人脑重的平均值。脑重量的增加与神经细胞的增大和神经纤维的增长有关。这时,额叶显著增大,大脑活动的兴奋与抑制机能有了增强。兴奋过程的增强表现在活动量大,睡眠时间相应减少,10岁儿童平均每日睡10小时,12岁儿童睡9～10小时。抑制过程增强表现在儿童能更加细致地分析和综合外界事物,并且能更好地调节和
Early school age refers to 6 to 7 years old to 11 to 12 years of primary school, this period of brain weight of children continue to increase, is close to the average adult brain weight. Increased brain weight is associated with increased nerve cells and increased nerve fibers. At this time, the frontal lobe increased significantly, the excitement of brain activity and inhibitory function has been enhanced. Excitement is enhanced by a large amount of activity and a corresponding reduction in sleep time, 10-year-olds sleeping on average 10 hours a day and 12-year-olds sleeping 9-10 hours. Inhibition is enhanced by the fact that children can analyze and synthesize external things in more detail and can better adjust