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  • (Bawn)

  • Seeing someone yawn is all it takes

  • to get me yawning.

  • In fact seeing someone yawn or hearing the word

  • or reading the word

  • is enough to get half of healthy adults yawning

  • Are you yawning now?

  • Yawning is an example of emotional contagion,

  • a phenomenon in which we tend to share

  • the feelings of the people around us

  • Of course yawning isn't the only behavior

  • that's contagious.

  • Sitcoms use laugh tracks because hearing

  • other people laugh can be hard to resist

  • (Laughter)

  • Even if the show isn't funny.

  • And when a baby in a hospital starts crying

  • look out,

  • because others within earshot

  • will also start crying.

  • We also copy less obvious signals from other people

  • such as posture,

  • speech patterns and facial expressions.

  • Emotional contagion and mimicry

  • may form the basis of empathy.

  • They help us to intuit the thoughts

  • and feelings of the people in our social circle.

  • And children under four

  • are actually less prone to contagious yawning,

  • as are children and adolescents on the autism spectrum.

  • Faces tell us a lot about what others are thinking and feeling

  • and people with autism tend to focus less on faces

  • and miss a lot of important social cues.

  • But even youngsters with autism

  • start to yawn when they're coaxed

  • into looking at the eyes

  • and sometimes the mouth of a yawner.

  • Evidence from chimpanzees suggests that yawning

  • spreads when empathy exists between two chimps.

  • Scientists showed chimps videos of either familiar animals

  • or strangers yawning.

  • The observers were much more likely to yawn

  • when they saw a familiar chimp.

  • We feel more empathy for people in our social groups

  • than for strangers.

  • And the brain mechanisms that support

  • contagious yawning may help maintain relationships too.

  • Even though it can be annoying,

  • contagious yawning is probably a sign of good social skills.

  • So don't hold back on the yawns.

  • Your friends might thank you for it.

  • For Scientific American's Instant Egghead

  • (Yawn)

  • I'm Sandra Upson.

(Bawn)

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B2 中高級 美國腔

为什么哈欠会传染(Why Is Yawning Contagious? - Instant Egghead #52)

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    joey joey 發佈於 2021 年 05 月 15 日
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