心理语言学在研究婴儿语言听辨时发现,胎儿的听觉系统在怀孕期最后的三个月开始运作。母亲的子宫壁可以对声音信号起到减弱和低频过滤的作用。传递到子宫里的最佳声音是婴儿母亲的声音,由于母亲的言语所产生的强度比外部环境的任何声音都要大,因此母亲的言语形式,特别是母亲语言的韵律特征,婴儿在胎儿期就已经开始熟 Psycholinguistics in the study of infant speech discernment found that the fetus’s hearing system in the last trimester of pregnancy began to operate. The mother’s uterine wall can attenuate the sound signal and filter low frequencies. The best voice delivered to the womb is the voice of the baby’s mother. Because the mother’s speech produces a greater intensity than any of the external environment, the mother’s verbal form, especially the rhythm of the mother’s language, It has already begun to mature