中級 9092 タグ追加 保存
動画の字幕をクリックしてすぐ単語の意味を調べられます!
単語帳読み込み中…
字幕の修正報告
You walk through a hardware store one day,
when all a sudden you catch a whiff. Something you haven't smelled for years.
Somehow the scent of glue immediately takes you back to your kindergarten classroom
and you spend the next couple minutes wondering what happened to that kid who used
to eat all that paste.
You just experienced what's known as odor-evoked autobiographical memory.
But it's simply a smell made you remember something from your past
and happen because the way smells and memories are hard-wired into your brain.
A lot of different cues like sights and sounds or even someone describing something
you're telling a story unrelated to your story they can trigger memories
Our memories links to smells are often stronger and more vivid and studies have
shown that they also tend to be memories of your
early life often before you were 10 years old,which is weird because adults
usually experience what's known as a reminiscence bump
when they don't remember much from before their adolescence.
But smells are really good at bringing those memories back.
These memories tend to be more perceptual rather than conceptual so you remember a
particular sensation rather than a lunch of facts about something that happened.
And researchers have come up with some theories why memories triggered by
smells are so odd.
There's a big difference between the way your body handles sight, sound, taste
and touch
and the way it processes smells. Those other centers are all ran through the
Thalamus, the part of a brand that sent them off in the appropriate processing centers.
So smells bypass all that. Once they're detected by receptors in your nose
the signal head straight to your olfactory bulb,
the smell-analyzing region in your brain. And later it happen to be connected
to the amygdala and hippocampus which are part of the brain that help handle
memory and emotion.
So it's possible that when you smell that glue in kindergarten, the signal got
tangled up with memories of
building blocks in apple juice. And when you smiled again, later you remembered
not just the glue but also some of the associated memories like that
weird kid who ate the paste. In 2013 a group of European psychologists tested
this whole phenomenon using functional magnetic resonance imaging.
First they present in subjects with 20 different strong specific
odors like garlic, whiskey, and leather, then for each person, they identified the
two that elicited the oldest
positive memory.
Then it was time to scan their brains. Each subject was presented with their
two experimental smells plus two generic
control smells, flowers, and citrus. They were also shown some verbal cues which
were just the names and the smells projected onto a screen.
The researchers found that both types of triggers tended to activate the regions
of the brain associated with memory.
But while the verbal cues lit up parts of the brain that were responsible for
processing smells,
the smells themselves were more strongly connected to emotional processing
centers.
Some of the participants associated the smells with memories from before they
were ten, while others remembered things from when they were between 10 and 20.
And depending on which time from the memories fell into their brains tended
to use different
regions to recall them. The earlier memory is lit up the orbital frontal
cortex which is connected to perception. The later one on the other hand tend to
activate the left inferior frontal gyrus,
which handles more conceptual memories. So can you use your nose's super
powers to help you remember things for your next big exam.
Probably not! Smells tend to evoke early, perceptive memories of events,
not concepts. So the scent of glue might make you remember playing with construction
paper in kindergarten,
but your smell memory will not help you memorize Maxwell's equations.
Thank you for watching this scishow which was brought to you by our patron
on Patreon. If you want to help support the scishow, you can go to PATREON.COM/SCISHOW
and don't forget
to go to youtube.com/scishow and subscribe, if you just wanna keep learn(ing) things that are interesting.
コツ:単語をクリックしてすぐ意味を調べられます!

読み込み中…

読み込み中…

How Smells Trigger Memories

9092 タグ追加 保存
葉子維 2015 年 7 月 27 日 に公開
お勧め動画

コメント

読み込み中…
  1. 1. クリック一つで単語を検索

    右側のスプリクトの単語をクリックするだけで即座に意味が検索できます。

  2. 2. リピート機能

    クリックするだけで同じフレーズを何回もリピート可能!

  3. 3. ショートカット

    キーボードショートカットを使うことによって勉強の効率を上げることが出来ます。

  4. 4. 字幕の表示/非表示

    日・英のボタンをクリックすることで自由に字幕のオンオフを切り替えられます。

  5. 5. 動画をブログ等でシェア

    コードを貼り付けてVoiceTubeの動画再生プレーヤーをブログ等でシェアすることが出来ます!

  6. 6. 全画面再生

    左側の矢印をクリックすることで全画面で再生できるようになります。

  1. クイズ付き動画

    リスニングクイズに挑戦!

  1. クリックしてメモを表示

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔