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  • Dreams are an amazing phenomenon.

    夢,是個令人驚奇的現象。

  • And considering you spend roughly 6 years of your life dreaming, it's quite curious that we often brush them aside to be quickly forgotten.

    你一生中作夢的時間總和大概有六年,但是相當奇怪,我們經常忽視並且快速遺忘夢的內容。

  • Night after night our brains go to work and bring us some of the most incredible, bizarre and often seemingly random imagery and storylines.

    一晚又一晚,我們的頭腦開始運作並帶來最不可思議、離奇的,通常是隨機的畫面或生活片段。

  • But what are dreams?

    但是,夢究竟是什麼?

  • And like the many science fiction stories or movies, could we ever record and figure out what we're seeing while we're dreaming?

    我們能夠像許多科幻小說或電影一樣,紀錄並且得知我們在做夢時所看見的畫面嗎?

  • You may have heard of people referring to 'brain waves' before, but have you ever stopped to think: are these actual waves, and do they carry information?

    你以前可能聽過其他人談論「腦波 」,但你是否曾經想過它是真實的波嗎? 它可以攜帶資訊嗎?

  • Are brain waves similar to, say, radio waves?

    腦波像是無線電波嗎?

  • The answer is, yes.

    答案是對的。

  • Both brain and radio waves are forms of electromagnetic radiation, waves that travel at the speed of light.

    腦波和無線電波都是以光速傳播的電磁輻射。

  • Every time you think, thousands of neurons fire at the same frequency and generate a wave.

    每次當你在思考時,數以千計的神經元以相同的頻率激發產生了波。

  • These waves oscillate at around 10 to 100 cycles per second.

    這些波以每秒10到100次的頻率振動。另一方面,無線電波每秒振動的頻率

  • Radio waves, on the other hand oscillate at around 50 million to 1 billion times per second.

    另一方面,無線電波每秒振動的頻率大約是5千萬次到10億次。

  • Scientists have long used this phenomenon to measure brain activity and interface the brain to electronic devices.

    長久以來科學家們根據此現象,將腦部和電子儀器做連結和測量腦部活動,

  • It allows us to see which parts of the brain are active for different activities, and similarly which parts of the brain are active during dreaming.

    讓我們知道腦部的哪一些區塊會在進行哪一些活動時活化,同樣地我們也可以知道哪些區塊會在做夢時活化。

  • Strange as it may seem, we still barely understand why we sleep let alone why we dream.

    也奇怪,我們對於為什麼要睡覺的原因仍然不清楚,更不別說是做夢了。

  • Michael from Vsauce does a fantastic job explaining the main theories for why we dream.

    Vsauce 頻道的Michael 對於做夢最主要的理論做了一個很棒的解釋。

  • But there are so many theories because we can't really measure or know what people are dreaming about, without waking them up and asking them.

    但是關於作夢的理論相當多,因為我們無法在不叫醒並詢問作夢者的狀況下,知道他們正在夢些什麼。

  • Of course, this is subject to forgetting or other errors.

    當然,這也會受到作夢者遺忘或其他誤差的影響。

  • Unfortunately, there is no device that exists to allow us to peer into the mind of a dreamer, or is there?

    不幸地是,沒有任何的裝置,讓我們能窺視作夢者的腦袋,或者是有呢?

  • Crazy as it sounds, scientists have created a technique to do just that.

    聽起來瘋狂,科學家創造了一種儀器來進行這件事。

  • This mind-reading technology began with a functional MRI Scanner, inside which subjects were shown simple pictures made up of black and white pixels.

    這個可以讀取大腦的技術,起源於功能性核磁共振造影儀,在裡面受試者會看見由簡單的黑白像素組成的圖案。

  • The software then finds patterns in the brain activity that corresponds to the specific images.

    這個儀器發現腦部活動呈現的圖形會和特定的畫面相對應。

  • For example, if the letter "T" was shown, the software would record exactly how the brain reacted.

    舉例來說,如果看到了字母「T 」,儀器會紀錄頭腦產生的反應。

  • After sufficient data, the subjects were then shown completely different images, and the software would predict and recreate what it thought the subjects were seeing.

    收集了充分的資料後,接著讓受試者看完全不同的畫面,然後儀器會試著猜測並且再創造它認為受試者看見的畫面。

  • After being shown the word "Neuron" these were the images the software generated.

    它認為受試者看見的畫面。當受試者看見單字「neuron 」時,儀器會產生這樣的影像。

  • But it doesn't stop there.

    但是不只是這樣。

  • Further studies began to use more complex visuals and started monitoring the subjects in their sleep.

    進一步的研究開始使用更複雜的視覺影像並在睡眠時進行監測。

  • In this case, they first had the subjects fall asleep while in an fMRI, and would wake them up in the middle of dreaming, quickly asking them what they were dreaming about.

    實驗中,先讓受試者在fMRI儀器內睡著,接著在受試者做夢過程中叫醒他們,立刻問他們剛作夢的內容。

  • They then used thousands of images from the internet to get a best approximation of what the subject was seeing based on brain scans.

    接下來科學家使用網路上數以千計的影像,根據腦部掃描的結果,試著拼湊最接近受試者夢中的畫面。

  • After doing this nearly 200 times with each person, and plugging the information into a learning algorithm, software was used to predict and generate their future dreams.

    每個人大約進行了近200次的試驗後,將資訊輸入學習演算法中,就可以讓儀器轉譯出受試者的下一個夢。

  • Though by no means perfect, it was clear that the machines predictions were better than chance, matching up with the dreamers description.

    儘管儀器的預測並不完美,但很明顯地預測與作夢者描述吻合的機率不小。

  • Perhaps even more shocking is a study that used actual video footage.

    也許更令人震驚的是,有一份研究利用錄影做實驗。

  • After showing subjects two hours of movie footage and analyzing their brain activity, they then used a library of 18 million, 1 second YouTube clips to match the brain activity.

    讓受試者先看兩個小時的電影後,再分析他們的腦部活動,接著研究用了1800萬個1秒鐘長度的YouTube影片片段來呈現。

  • Here are the results: On the left are new, unrelated clips that the subjects were later shown, and on the right is what the software guessed they were seeing, using a mashed up combination of the YouTube clips as an approximation.

    結果是,畫面左邊是讓受試者觀看的全新影片,畫面右邊是儀器利用眾多YouTube 影片片段重組而成的影像,用來預測受試者看見的畫面。

  • All of this based on their brain waves.

    所有的預測都是根據受試者的腦波而做的。

  • As these software programs become more and more complex, we come that much closer to accurately visualizing and recording our thoughts and dreams.

    隨著分析用的儀器和程式越來越複雜時,我們的夢境和想法將能夠被更精確的紀錄和視覺化。

  • At which point, perhaps, we'll have a few more clues into why we dream, in the first place.

    也許最後我們會找到更多一開始提到人為什麼會作夢的線索。

  • And if you'd like to find out about other amazing and unanswered scientific phenomenon, head over to All Time 10's channel, where 10 fantastic science YouTubers have come together in an attempt to answer some burning questions.

    如果你想搜尋其他驚奇且未知的科學現象,過來 All Time 10's channel,有10位很棒的 YouTube 科學研究者聚在一起,試著解答正火熱的一些問題。

  • It's a super-collaboration of SCIENCE! And if you're new to AsapSCIENCE, be sure to subscribe for more weekly science videos! We've made a playlist of some of our favorite and most popular videos for your viewing pleasure. Enjoy!

    這是科學界的超級組合! 如果你是第一次來到AsapSCIENCE,記得要訂閱我們的每周科學影片。 我們已準備了許多最喜歡且最熱門的影片等你來觀賞。

Dreams are an amazing phenomenon.

夢,是個令人驚奇的現象。

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「夢」可以錄起來嗎? (Could We Record Our Dreams?)

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