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  • Hey there, welcome back to Life Noggin.

    嘿,歡迎回到 Life Noggin 頻道

  • Have you ever had that eerie feeling that you're reliving a past experience?

    你是否也曾經有過那個詭異的感覺,好像重活了一次過往的經歷?

  • Maybe you're traveling to New York City for the first time and it feels strangely familiar.

    也許你第一次去紐約,但卻覺得異常的熟悉

  • Or maybe you're experiencing it right now, when you think you've already watched this video before.

    或許你在看這部影片的當下也有這種感受,覺得自己好像已經看過了一樣

  • Ooh. Spooky.

    噢,有點可怕

  • This phenomenon is called "déjà vu",

    這種現象叫「似曾相識」(註:學名為「既視感」)

  • which is French for "already seen".

    在法文中是「曾經看過」的意思

  • Historically, déjà vu has been linked with epilepsy and seizures in the brain.

    在歷史上,似曾相識被認為與癲癇及腦癲癇有關

  • But that doesn't explain why people without epilepsy experience déjà vu.

    但這無法解釋為什麼沒有癲癇症的人也會感受到似曾相識

  • After all, about two thirds of the population have experience it at least once in their lives.

    畢竟有三分之二的人們都至少經歷過一次

  • So there has to be something else going on here.

    所以一定有別的解釋

  • The exact cause of déjà vu is unknown, but there are a lot of theories attempting to explain it.

    造成似曾相識的確切原因仍未知,但有很多相關的理論

  • For simplicity's sake, let's narrow it down to three main categories.

    我們將原因簡化為三個

  • The first of these is called "Dual Processing".

    第一個叫「雙系統理論」

  • This is when two normally coordinated cognitive processes become momentarily out of sync.

    這是當兩個原本協調一致的認知系統暫時產生不同步的現象

  • For example, if I feel familiar with something,

    舉例來說,如果我對某事感到熟悉

  • it might be because my brain has retrieved a memory similar to that one that I'm currently experiencing.

    可能是因為我的大腦自動找到了一個與目前狀態相似的記憶

  • Retrieving a memory always comes before the familiarity.

    通常尋回的記憶一定會比熟悉感來的強烈

  • Well... except in déjà vu.

    除了在經歷似曾相識的時候

  • In that case, I would have a feeling of recalling something without my brain actually doing any retrieving.

    在這個情況下,大腦完全沒有找尋記憶,我們卻能有熟悉的感覺

  • I could feel like I recognize something on that street corner in New York City without ever having been there before.

    我也許會覺得我認得紐約轉角的事物,即便我從來沒有去過

  • The next theory is related to the nervous system not functioning properly.

    下一個理論與不當運作的神經系統有關

  • Déjà vu can either be caused by a spontaneously firing of a neuron, or from a delay in the neuron's transmission speed.

    似曾相識可能是因神經元自動發射訊號,或是因為神經傳送速度的延遲造成

  • To demonstrate the second one, let's take a look at this alpaca walking in high heels.

    為了證明第二點,我們來看看這隻穿著高跟鞋走路的羊駝

  • Now you've more than likely never seen an alpaca do that before,

    正常來說你應該沒有看過羊駝做這種事

  • if you had, I'm very jealous of you.

    如果你有,那我很嫉妒你

  • But if you were experiencing déjà vu,

    但如果你剛才有體驗到似曾相識的感覺

  • one explanation is that the information passing through your eyes into your brain is reaching in a different time.

    其中一個解釋是資訊從你的眼睛進到腦袋的到達時間不一致

  • Let's say the information gets from you left eye to your visual cortex just before the information from your right eye gets there.

    我們假設左眼的資訊先進到你的視覺皮層,才換右眼的資訊

  • These two events happen in such a short amount of time that the left eye's information has not stored it's memory yet.

    這兩件事發生得如此迅速,導致左眼的資訊根本還沒存進記憶裡

  • But since your brain received the information twice, it feels familar nontheless.

    但因為你的大腦接受了兩次訊息,所以會感到熟悉

  • The last theory's a bit more intuitive, and states that if you have a false sense of familiarity with something new,

    最後一個理論比較直觀,它認為如果你對於新的事物有熟悉感

  • it's becuase some elements of the situation ARE familiar.

    是因為在這個狀況內的某些元素真的是你遇過的

  • For example, if you were to go to a new friend's home for the first time,

    舉例來說,如果你第一次去一個新朋友家

  • and they have the same kitchen table as your great aunt,

    他跟你的姑婆有一樣的餐桌

  • you may have a strong feeling of familiarity without realizing where you've seen it before.

    你可能會有強烈的熟悉感,卻想不起是在哪裡見過

  • In your confusion, you mistakenly think that you must have experienced the entire situation already, instead of just the table.

    而你會混亂的以為你已經經歷過整個場景了,而不是只有那張桌子熟悉而已

  • Well then why don't we experiece déjà vu every time we subconsciously recognize something?

    那為什麼我們不會在每次潛意識認出東西時,就經歷似曾相識的感覺呢?

  • Some theories say that there may have to be multiple elements that are familiar to you.

    有些理論說也許周圍需要有多樣對你而言熟悉的元素

  • Or maybe the room just has to be organized in a similar way as the one you recognize.

    或是房間的規劃必須跟你認出的那個很相近

  • Either way, something is familiar and you just haven't realized it yet.

    不論是哪種說法,那裡有就是有東西是熟悉的,你只是還沒察覺罷了

  • Have you ever experienced déjà vu?

    你有過似曾相識的感覺嗎?

  • And tell us out of all these, which theory sounds the most convincing to you.

    告訴我們你覺得哪個理論比較能說服你吧!

  • If you want even more Life Noggin, check out this great video we did on why our hair turns gray,

    如果你想收看更多的 Life Noggin,可以看看這部解釋為何我們頭髮會變白的影片

  • and make sure you're following us on Facebook and Twitter.

    也請確認你有追蹤我們的臉書及推特

  • We post some pretty cool stuff there, too!

    我們在那也會 PO 一些滿酷的東西!

  • I'm Blocko. This has been Life Noggin. Don't forget to keep on thinking.

    我是 Blocko,這裡是 Life Noggin。別忘了要繼續思考喲!

Hey there, welcome back to Life Noggin.

嘿,歡迎回到 Life Noggin 頻道

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B1 中級 中文 美國腔 似曾相識 理論 記憶 羊駝 感覺 資訊

似曾相識的感覺到底是怎麼來的呢? (What Causes Déjà Vu?)

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    Colleen Jao 發佈於 2017 年 02 月 22 日
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