Name: TED-ED】あくびはなぜ伝染するのか？- クラウディア・アギーレ (【TED-Ed】Why is yawning contagious? - Claudia Aguirre)
Uploaded: 2021-01-14T04:54:32.000Z
Duration: 4 min 30 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

This phenomenon is known as contagious yawning.

And while scientists still don't fully understand

there are many hypotheses currently being researched.

beginning with two physiological hypotheses

Think of fixed action pattern like a reflex.

in a person nearby that has observed the act.

This occurs when you imitate someone's behavior

a subtle and unintentional copycat maneuver.

People tend to mimic each other's postures.

that we yawn when we see someone else yawn

Scientists believe that this chameleon effect

is possible because of a special set of neurons

that responds equally when we perform an action

For example, watching someone do something physical,

can help you do those same actions more accurately.

Our psychological hypothesis also involves

a crucial ability for social animals like us.

allows us to empathize with others' feelings

while testing the first hypothesis we mentioned,

While their study showed this to be true,

Dogs yawned more frequently at familiar yawns,

occurs more frequently among friends than strangers.

In fact, contagious yawning starts occurring

when we are about four or five years old,

develop the ability to identify others' emotions properly.

Still, while newer scientific studies aim

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TED-ED】あくびはなぜ伝染するのか？- クラウディア・アギーレ (【TED-Ed】Why is yawning contagious? - Claudia Aguirre)

specific

pattern

person

brain