Kang Lee: Can you really tell if a kid is lying?
カン・リー: 子どもの嘘は見抜けるか?
Kang Lee has devoted his career to understanding the development of social cognition and behavior. Full bio
Double-click the English transcript below to play the video.
嘘をついたことはありますか?
raise your hand?
手を挙げてください
group of people I've ever met.
一番正直な方々ですね
how children learn to tell lies.
嘘をつくことを学ぶか 研究してきました
a story from Mr. Richard Messina,
リチャード・メッシーナ氏の話です
school principal.
小学校の校長です
will not come to school today
今日 息子のジョニーは
three common beliefs we have
大人が共通して持つ3つの
如実に物語っています
at a very young age,
character flaws with them,
pathological liars for life.
to guess the numbers on the cards.
カードに書かれた数字を当ててもらいました
to win the game is so strong,
とても強いので
聞いたとき
of gender, country, religion,
about their transgression.
tell the truth.
50パーセントが本当のことを言います
of development.
成長に欠かせない部分です
at the younger children.
もっと詳しく見てみましょう
young children lie?
全員が嘘をつくとは限らないのは何故か?
two key ingredients.
is theory of mind,
different knowledge about the situation
持っている知識が違うと知る能力であり
between what I know
相手の知っていることとの
for good lying is self-control.
自制心です
your facial expression
ボディランゲージを
and self-control abilities
are also essential for all of us
これら2つの能力は 誰にとっても
不可欠だということ
and self-control abilities
developmental problems,
is telling his or her first lie,
初めての嘘をついたら
has arrived at a new milestone
detect their lies?
思いますか?
to a researcher's question,
子どもたちの反応が出てきます
child number one is lying,
嘘をついてると思う人は
is lying, please raise your hand.
思う人は手を上げて下さい
detectors of children's lies.
下手みたいですね
数多くの成人に
from all walks of life.
the children told the truth.
how these adults performed.
as truth tellers,
同数ですから
you're going to get it right.
of children's lies.
and law school students,
学生から始めましょう
limited experience with children.
浅いですからね
and child-protection lawyers,
児童保護の弁護士ではどうでしょう?
detect their own children's lies?
are so difficult to detect.
これほど難しいのか?と
with my own son, Nathan.
示してみましょう
is typically neutral.
a lot of emotions,
are either fleeting or hidden.
一瞬のものだったり 隠されていたりします
to reveal these hidden emotions.
見つけようと試みてきました
顔面の皮膚の下には
by the autonomic system
自律神経系で
facial blood flow changes
このような顔面の血流の変化は
肉眼で捉えるのは難しいです
people's facial emotions,
開発しました
video camera to record people
普通のビデオカメラで
various hidden emotions.
隠しているところを記録します
processing technology,
of facial blood flow changes.
経皮画像に抽出できるのです
with the various hidden emotions.
顔面の血流変化を見ることができます
associated with lying,
暴くこともできるようになりました
嘘を発見できます
a Pinocchio effect.
ピノッキオ効果を発見しました
on the cheeks decreases,
on the nose increases.
呼び覚ます条件は
we can help this mathematics teacher
数学の教師の助けとなって
授業内容に不安を感じているか
about the topic he's teaching
what's going on in their lives
知るのみならず
their heart rate, their stress level,
気分や 痛みを感じているかどうかも
they are experiencing pain.
ことができるのです
or hypertension.
politicians' emotions?
the politicians' heart rate,
whether or not they are lying to us.
in marketing research,
マーケティング調査に使うことも
certain consumer products.
気に入っているかどうかといったことです
助けになるでしょう
好意を寄せているのか
that we don't know today.
沢山出てくることでしょう
be the same again.
違ったものになるだろうということです
ABOUT THE SPEAKER
Kang Lee - Developmental researcherKang Lee has devoted his career to understanding the development of social cognition and behavior.
Why you should listen
With an international team based at the University of Toronto, Kang Lee investigates the neurological and social basis of emerging social behaviors in young children. His two-pronged research focuses first on how and when children develop the capacity to lie, to detect liesand to feel guilty about it afterwards.
The second focus of Lee's research is facial recognition, which has led to revelations of when children develop the ability to distinguish races and has helped explain why some people occasionally see Jesus' face on a piece of toast.
Kang Lee | Speaker | TED.com