Yawning's contagious -- here's why
Comments October 31, 2010
The average human is estimated to yawn 240,000 times in a lifetime, often starting when we're still in the womb.
根据统计，一个正常的人一生中，从在子宫里开始计算，会打24万个哈气
The study, described in the journal Child Development, involved adult volunteers yawning in front of kids. The researchers also found that children aged 6 to 15 with severe autism seemed to miss the cues of the social yawn.But contagious yawning -- yawning when seeing someone else yawn -- doesn't occur in most children until they're about 4 years old, a new study shows.
这项刊登在儿童发展杂志的研究，还包括了成年的志愿者在小孩儿面前打的哈气。研究结果同时显示出6到15岁患有严重自闭症的儿童能表现出对打哈欠传染的免疫力。但是只有四岁以上的孩子中才开始体现传染哈气的现象。
"This lends support to the idea that the social mind develops over time through a process of mimicry and feedback," says Molly Helt, a doctoral student in psychology at the University of Connecticut. "If we can identify a lack of mimicry of facial expressions early, it could be a way to identify potential neurodevelopment disorders such as autism."
“这个发现为社会意识是通过长时间模仿和反馈中建立的理论提供了依据”，莫里·希尔特（康涅狄格州大学心理学博士生）说：”如果能够及早发现这样的面目模仿缺乏的现象，我们也许能够预测潜在的不正常神经发育现象，比如自闭症。“
Other studies have shown that while we do yawn when we're sleepy, the act is, in reality, connected more to maintaining or increasing alertness, not because it boosts oxygen levels in the blood, but because stretching the jaw boosts circulation to the brain.
其他研究已经说明，尽管我们在困的时候打哈气，但是事实上这是一种维持和提高警觉性的自然反应，并不是在打哈气的时候血液能得到跟到更多的氧气，而是因为额骨的伸展能刺激大脑的血液循环。
Even skater Apollo Ohno, who has a habit of yawning just before he starts a race, has confided that while he thinks it boosts oxygen levels for him, it also "lets the nerves out."
甚至滑冰运动员阿波罗·奥诺在每次比赛之前也会有打哈气的习惯，他坚信这样能让他提高血液的后含氧量，同时也能吐出厄运。
Scripps Howard News Service |
发表于 2010-11-4 17:02:36
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