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ond. 其實,此時此刻在你的大腦內(nèi)有800億神經(jīng)元,它們在來回發(fā)送電信號和化學信號。但在這里有一些位于你的運動皮質(zhì)的神經(jīng)元,你這樣運動胳膊的時候會向下發(fā)送信號。這些信號會向下穿過胼胝體,進入你的脊髓,到達下運動神經(jīng)元,再到達你這里的肌肉,這種電信號釋放會被這里的電極接收,于是我們就能夠聽到你的大腦到底想要做些什么。我來打開這個東西?! ave you ever heard what your brain sounds like? SK: No. GG: Let39。s try it out. So go ahead and squeeze your hand. (Rumbling) So what you39。re listening to, so this is your motor units happening right here. Let39。s take a look at it as well. So I39。m going to stand over here, and I39。m going to open up our app here. So now I want you to squeeze. (Rumbling) 你有聽過你的大腦的聲音嗎?SK:沒有。GG:來試試吧。來試著抬肘握一下拳。(隆隆聲)你現(xiàn)在聽到的,這就是你的運動單元正在此處發(fā)揮作用。我們也來看一下好了。我會站在這里,我需要打開我們的應(yīng)用程序?,F(xiàn)在握一下拳,(隆隆聲) So right here, these are the motor units that are happening from her spinal cord out to her muscle right here,and as she39。s doing it, you39。re seeing the electrical activity that39。s happening here. You can even click here and try to see one of them. So keep doing it really hard. So now we39。ve paused on one motor action potential that39。s happening right now inside of your brain. 就在這兒,這些就是正在起作用的運動單元,從她的脊椎延伸到這里的39。肌肉,伴隨著她的動作,你可以看到這里的電信號活動。你甚至可以點進去看其中的一個。繼續(xù)不停地使勁握拳。我們現(xiàn)在暫停在此時此刻正在你腦內(nèi)的一個運動電勢?! o you guys want to see some more? (Applause) That39。s interesting, but let39。s get it better. I need one more volunteer. What is your name, sir? Miguel Goncalves: Miguel. GG: Miguel, all right. You39。re going to stand right here. So when you39。re moving your arm like this, your brain is sending a signal down to your muscles right here. 你們想看更多的嗎?剛才的那個挺有趣的,不過還有更有意思的。我還需要一名志愿者。先生,請問你的名字是?Miguel G