扫描关注少儿英语微信

• 新浪少儿英语官方微信已正式开通
• 双语揭秘：全世界最大的兔子有多大
• 双语揭秘：奥巴马给女儿的16条建议
• 辣妈手记：如何保证孩子的优质睡眠
• 辣妈手记：如何做好幼儿眼睛的保健
• 揭秘：吸血鬼日记女主宣布退出第七季

婴儿的大脑发育离不开母亲的嗓音

　　The sound of a mother’s voice plays a critical role in a baby’searly development, multiple studies have shown. Now, researchershave demonstrated that the brain itself may rely on a mother’svoice and heartbeat to grow。

　　多项研究表明，母亲的嗓音在婴儿早期发育中起着重要作用。现在，研究人员发现，大脑本身可能要依靠母亲的嗓音和心跳声进行发育。

　　Researchers at Brigham and Women’s Hospital in Boston studied 40babies born eight to 15 weeks prematurely. Like most severelypremature babies, the infants were confined to incubators and spentlimited time with their mothers。

　　波士顿布里格姆妇科医院(Brigham and Women’sHospital)的研究员们调查了40名早产8至15周的婴儿。和大多数严重早产的婴儿一样，他们被放在恒温箱里，和妈妈在一起的时间很有限。

　　“Preemies born this early are basically fetuses that happen tobe out there by accident,” said Amir Lahav, an assistant professorof pediatrics at Harvard Medical School and senior author of thestudy。

　　“这么早出生的早产儿基本上还是胎儿，他们只是意外出生，”这项研究的高级作者、哈佛大学医学院儿科学助理教授阿米尔·拉哈夫(AmirLahav)说。

　　Using tiny speakers placed inside the incubators, half thebabies were exposed to the sounds of their mothers’ voices andheartbeats for three extra hours every day. The other half receivedno additional exposure to such sounds。

　　研究者在其中一半婴儿的恒温箱里放入小扬声器，播放母亲的嗓音和心跳声，每天播放三个小时。另一半婴儿没有听到这样的声音。

　　After 30 days, babies in the first group had developed asignificantly larger auditory cortex — the hearing center of thebrain — than those in the second group. The findings, published inProceedings of the National Academy of Sciences, could help guidedoctors and parents caring for premature babies, who often sufferfrom developmental and cognitive disabilities。

　　30天后，第一组婴儿的听觉皮层(大脑的听觉中心)明显比第二组婴儿的大。这项研究发表在《国家科学院学报》(Proceedingsof the National Academy ofSciences)上，它能帮助指导医生和父母照顾早产儿。早产儿经常出现发育和认知障碍。

本文选自咿咿呀呀在花圃的博客，点击查看原文。