B1 中級 1284 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
Ever since Aristotle, we've been told that we have five senses, but it's now thought we could have around 20 or more.
For example, the sense that tells you you're feeling hot or cold, the sense that tells you you're out of breath, and the sense of balance.
We don't consciously experience the raw information all these senses generate, because the brain is constantly engaged in the act of perception—the analysis, synthesis and interpretation of all that data.
Perception can utilise what's known as bottom-up processing, whereby the brain relies on analyzing sensory data.
But certain perceptions are produced in a different way, by top-down processing—instead of relying just on sensory data, the brain calls on past experiences to make a best guess as to what might be there.
In certain situations though, this type of processing results in mistakes.
Like this —you're probably seeing two different colours here, but in fact there's only one.
Based on past experience—that surfaces in brighter light are darker than they appear, and surfaces in shadow are lighter.
The brain expects that there should be two shades, and so that's what it puts into the virtual model it's creating.
This top-down processing accounts for a number of human perception traits.
We very often see faces, because we're hardwired to tune into them.
The fact that we're all living in our own virtual recreations of the world is revealed most sharply by cases of people with malfunctioning perception, known as agnosia.
It's a general term that covers many different conditions.
What they all have in common is that the senses are still working perfectly.
The brain is receiving the same information it always did, but its ability to process, interpret, and recognize is damaged.
Someone suffering from prosopagnosia, for example, has serious difficulty recognizing people by looking at their faces, but could still recognize them instantly from the sound of their voice.
In extreme cases, sufferers can't recognise their own image in a mirror.
A person with akinetopsia is able to perceive objects normally when they're still, but can't recognise, or make sense of anything that's moving.
When someone with hears words, they just hear meaningless noises, so they can't have a conversation.
But it's only the hearing of words that's affected—they can still talk, read and write.
So, our ability to navigate the world is entirely dependent on the complex mechanisms, which interpret all the noise our senses make and give it meaning.
Or, as the famous neurologist Oliver Sacks put it: "Every act of perception is to some degree an act of creation."
Thanks for watching.
Don't forget to subscribe and click the bell to receive notifications for new videos.
See you again soon!
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…

私たちは自分が作り上げた感覚の世界で生きている?人の顔を認識することについて(Why we see faces in clouds | BBC Ideas)

1284 タグ追加 保存
Annie Huang 2020 年 4 月 10 日 に公開    newzealand 翻訳    Yukiko チェック
お勧め動画
  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