你根本看不見（大腦錯覺）：英語精讀講義

Your eyes help you see the world,

你的眼睛幫助你看見這個世界，

but you can't see this dot.

但你卻看不見這個圓點。

No, seriously,

不，說真的，

if you close your left eye,

如果你閉上左眼，

stare at this crosshair with your right eye,

用右眼盯著這個十字準星，

and slowly move your head towards or away from the screen, 片語搭配

然後慢慢讓頭部靠近或遠離螢幕，

the dot will disappear,

這個圓點就會消失，

revealing the exact location of your blind spot. 講解

進而準確顯示出你盲點的位置。

The cells at the back of your eye transform light into signals 片語搭配

你眼球後方的細胞會把光轉換成訊號，

that are sent to your brain, 文法

再將訊號傳送到大腦，

but they are missing right here

但這裡恰好沒有這些細胞，

because this is where nerves and blood vessels connect to the eye.

因為神經和血管正是在這裡與眼球相連。

So, anything at that point in your vision you can't see,

所以，視野中落在這個位置上的任何東西，你都看不見，

aka your blind spot. 用詞

這就是所謂的盲點。

If we add a line through the image and you try again,

如果我們在圖中加一條貫穿畫面的線，然後你再試一次，

you'll notice that your brain fills in information 片語動詞

你會發現大腦會自行補足資訊，

and makes you think the line is continuous 文法

讓你以為這條線是連續的，

instead of there being a hole in your vision. 文法

而不是覺得視野中間有個缺口。

You also can't see all 12 of these black dots at once

你也無法同時看到這12個黑點，

for a similar reason.

原因也與此類似。

Go ahead and try. 語氣意圖

來試試看吧。

Chances are you'll only see a fraction of them at once. 片語搭配

你很可能一次只能看到其中一小部分。

The exact point your eye looks at is focused,

眼睛正注視的那個點能清楚成像，

but your peripheral vision isn't great, 用詞

但你的周邊視覺沒那麼好，

and so your brain often makes assumptions for what's there.

所以大腦經常會對那裡有什麼做出推測。

Because of the consistent gray line pattern,

由於灰色線條的圖案始終一致，

your brain assumes the rest of the image is just like that

大腦便認定影像的其餘部分也是如此，

and misses the black dots until you look directly at them.

直到你直視黑點時，才會注意到它們。

These two rectangles are flashing out of phase with each other, 用詞

這兩個長方形閃爍時彼此不同步，

right?

對吧？

How about now?

那現在呢？

For most,

對大多數人來說，

the rectangles will now seem to be flashing at the same time, 文法

現在，這兩個長方形看起來會同時閃爍，

in phase,

也就是同步閃爍，

but they aren't at all.

但實際上它們根本不同步。

And yet, 表達脈絡

然而，

if we move these shapes beside them just a few pixels,

如果我們把它們旁邊的這些圖形移動幾個像素，

you'll begin to see them out of phase again.

你就會再次看出它們並不同步。

The surrounding area has a direct impact on how you see and perceive things, 片語搭配

周圍區域會直接影響你看待和感知事物的方式，

even if the result isn't correct. 文法

即使你感知到的結果並不正確。

Not convinced? 語氣意圖

還不相信？

Look at these flashing squares.

看看這些閃爍的方塊。

Except what you might not have seen 文法

不過，你可能沒有發現，

is that the middle square isn't flashing at all.

中間的方塊其實根本沒有閃爍。

If we remove the outer square,

如果我們移除外層的方塊，

we see it for what it is, 慣用語

就能看清它原本的樣子，

a solid color.

一整塊純色。

Now,

現在，

try reading the sentence inside it.

試著讀讀看裡面的句子。

Did you catch the extra word? 用詞

你有發現多出來的那個單字嗎？

Your brain doesn't always notice mistakes like these 文法

你的大腦並不總能注意到這類錯誤，

because it doesn't affect your comprehension of the sentence,

因為它們不會影響你理解句子，

and your brain would prefer to act quickly 文法

而且你的大腦更願意迅速行動，

rather than to be perfectly accurate.

而不是做到完全準確。

Try staring at the middle dot in this illusion.

試著盯著這張錯覺圖中央的圓點。

When the picture isn't moving,

當畫面靜止時，

the colors are clearly changing quickly,

顏色顯然在快速變化，

yet when the image starts rotating, 表達脈絡

然而，當影像開始旋轉時，

the color change either seems non-existent or much slower. 文法

顏色變化看起來要不是完全不存在，就是慢了許多。

Our eyes and brain have evolved to see,

我們的眼睛和大腦經過演化，讓我們能夠看見，

but our vision makes assumptions based on learning,

但視覺會根據學習經驗、

memory,

記憶

and expectation,

和預期做出推測，

and all of these illusions take advantage of this adaptation. 片語搭配

而所有這些錯覺都利用了這種適應機制。

It's an advantage to have rapid information processing,

快速處理資訊是一種優勢，

so instead of taking in every bit of detail to be 100% accurate, 片語動詞

因此，大腦不會為了百分之百準確而接收每一個細節，

which would cause a brain overload, 文法

因為那會讓大腦不堪負荷，

your brain makes assumptions.

而是會做出推測。

This faster perception allows for faster reflexes 片語動詞

這種更快的感知方式能讓人反應更迅速，

and faster conscious and unconscious decisions,

也能更快做出有意識和無意識的決定，

an integral aspect of human nature. 片語搭配

這是人性中不可或缺的一環。

Much like this halo, 表達脈絡

就像這個光環一樣，

if you stare at the center dot for long enough,

如果你長時間盯著中央的圓點，

the brain will simply make it disappear.

大腦會直接讓它消失。

It makes an assumption that the information is unchanging or unimportant,

大腦會認定這些資訊沒有變化或並不重要，

and as a result, 表達脈絡

結果，

you can't see it.

你就看不見它了。

Love tricking your brain with illusions?

喜歡用錯覺捉弄自己的大腦嗎？

We've put together a playlist of our favorite ones

我們把最喜歡的錯覺影片整理成了一份播放清單，

that you can watch by clicking the screen.

點一下螢幕就能觀看。

Don't forget to subscribe for more weekly fun science videos.

別忘了訂閱，收看我們每週更新的更多趣味科學影片。