of this Vauce lean back you can click this annotation

Vauce輕鬆看，你可以點撃進入這裡

or the link at the top of the description to start it and then you can just lean back

或是點撃最上的簡介去開始，然後你就可以輕鬆看

and the autoplay playlist bring the knowledge right to your brain

自動播放清單會把知識傳送到你的腦中

as you already know it doesn't really work on mobile phones yet so we can tell

你可能已經知道這不能在手機上運作，所以我們告訴

you in a better position to lead back

你在一個較好的位置去放輕鬆

in the meantime let's get Saccadic

而現在就讓我們一起掃視

no not psychotic, saccadic

並不是神經病 而是掃視

referring to what is known as a saccad the quick movements that are eyeballs make me move from one object to the other

這個動作意思是我們從一個點快速的看另一個點

As you may remember from a previous lean back some animals like most birds

你可能知道有些動物是無法移動眼球(大多的鳥類)

cannot move their eyeballs into the look from one thing to another they have to head really really fast

所以他們從一個點看到另一個點是無法快速移動眼球的，所以他們必須快速移動頭部

and keep the world from being blurry when their bodies new they have to keep

而為了可以讓他們視野不會模糊，所以他們可以再移動身體的時候

their heads completely stationary

維持頭部不動

but here's the lead things about saccad when our eyes move

但掃視是一件很有趣的動作

there's a quick blur between one destination and the other

當我們眼球在兩定點快速移動的時候，會有一段模糊的印象

and that blur is completely incomprehensible to our brain

而這段模糊我們的大腦沒有辦法辨識

so what are visual system does is erase it from our memory

所以我們的視覺系統會把這部分的記憶刪除

and instead replace that little fraction of a second that the eye moved

並當你眼睛移開時，就會把那個小小的影象填補起來

during with the very next thing we see. This leads to a really amazing allusion

那一小段時間會以我們接下來看到的東西取代，導致了一段不可思議的錯覺

called the stopped clock allusion you may have noticed this before

叫做時鐘靜止現象，可能你以前就有注意一件事

if you've ever been in a room with the clock with the second game like in a classroom

如果你曾經在一個有秒針的房間內 例如在教室裡

starting your eyes back and forth waiting for class

一直瞄著時鐘，等不及下課

to be out now here is what happens right when you don't your eyes to the clock

但實際上發生的事情，當你把眼睛轉過去的剎那間

that very first second that very first movement of the second hand

接下來的一秒，你所看到秒針調動的下一秒

that happens when your eyes reach it seems longer

感覺比平常的一秒還長

in every other second afterwards look away from the clock

而在每下一秒，我們從時鐘再看其他地方

and then look and that first second was seen to link

然後再看，第一秒的影像像是連結起來

as if time itself is stop the reason for that

彷彿時間靜止般

is that you're brain replaces the time it took for your eyes the goal from here

因為你眼睛掃過去的瞬間，中間的模糊影像被大腦所刪去

to the clock with the image of the first thing you saw which with second-hand

替代成你接下來看的影像，也就是剛移動的秒針

and so that little fraction of a second of time is added

所以當你的眼睛移動的瞬間被加到那一秒時間中

to link the time it takes second-hand to move what's really mind-blowing about this entire

另一件讓你驚訝的事情就是，這個事情隨時再發生

fact as it happens all the time all day

幾乎每天不斷的在重複

as you look around the world from one point to another that little fraction of a second

當你把眼睛從一個點看到另一個點，時間就這麼消失

that your eyeball was moving is lost and your brain just replace it with a very next thing

然後你的大腦就把那段時間取代成下一個你看到的東西

you see it might just be a tiny tiny mini time

可能只是一小段時間

but over the course of an entire day those little fraction in a second

但是經過一整天下來，這些零碎的時間

add up to almost 40 minutes

加起來達到40分鐘(一天)

40 minutes of everyday that you're awake are lost

當你眼睛睜開的時候40分鐘就這樣不見了

because of eyeballs move

只因為眼球的轉動

and that's always thanks for watching

一如往常，謝謝收看

so what are you waiting for

所以你還在等什麼？

picture to start the leaf back or click the link at the top of this video

如果喜歡的話，請點選圖片上的連結，持續的追蹤我的頻道吧