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  • I just changed the structure my brain--

  • or broke something up there.

  • We should have an ambulance standing by, guys.

  • Anthony here for D News.

  • And your brain is adapting and changing all the time

  • based on everything you do.

  • A new study from Imperial College London

  • shows that ballet dancers' brain structures actually

  • change to keep them from getting dizzy.

  • They just suppress the signal from the inner ear

  • that tells them to get disoriented.

  • Just, nope, not needed.

  • Filter that information, please.

  • But it's not just a switch or a filters.

  • The bits of the cerebral cortex that

  • process those signals actually shrink.

  • They get out of the way to allow other bits to get stronger.

  • This is neuroplasticity, and is the jam.

  • It's a fairly new idea, even though it

  • was proposed in 1890 by William James.

  • Up until the 1960s, everyone pretty much

  • thought that once childhood was over,

  • your brain just froze, stopped developing.

  • Not only is that false-- the extent

  • to which your brain can change is crazy.

  • A study of London cab drivers actually

  • found that they have more fully developed hippocampuses

  • than most people.

  • That's the part of the brain associated

  • with space and memory.

  • Animals that hide food for the winter and have to find it

  • later have more fully developed hippocampuses than animals that

  • don't.

  • And years of having to know their way around all 25,000

  • streets of London made the cab drivers' brains restructure

  • to become good at it.

  • Studies of the brains of high-level athletes

  • have showed that having to focus on precision

  • and constantly integrate feedback into their routine

  • actually thickens the outermost layers of their brains.

  • Scientists can actually tell how long

  • somebody has been intensely practicing a sport by how thick

  • those layers are.

  • But it doesn't take years of practiced routine

  • to make this stuff happen.

  • Your brain is insanely adaptive, even in the short-term--

  • even if you just think about changing it.

  • A Harvard study a few years back gave two groups of people

  • a couple days of piano lessons.

  • Then one group practiced for another five days

  • and the other group imagined practicing for five days.

  • They just mentally went through the steps

  • of playing the song in their head.

  • And after scanning everyone's brains,

  • they found that the motor cortexes of both groups

  • expanded just as much, at least for the first few days.

  • Now, on the other hand, neuroplasticity could

  • be part of why habits can be so hard to break,

  • and might also have a hand in addiction.

  • Mice given cocaine just once grew new brain circuitry

  • within two hours.

  • They adapted quickly to love the drug

  • and to seek out the environment where it was given to them.

  • But it also means that if you need

  • to change a habit that seems impossible to kick,

  • you might still be able to strengthen

  • the parts of your brain you need to get rid of it.

  • A study of musicians' brains show

  • that they have highly developed frontal lobes

  • and are more likely to be calmer and open-minded.

  • So if you have anger or defensiveness issues,

  • you could potentially take up an instrument

  • to help train yourself out of them.

  • Basically, your brain becomes the brain

  • you make it through what you do every day.

  • You can train it just like any other part of your body.

  • Now I just need to know which part of my brain

  • hits the snooze button too many times in the morning.

  • What would you like to train your brain to do?

  • Let me know down in the comments and subscribe for more D News.

I just changed the structure my brain--

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B1 中級

你做的事情如何改變你的大腦 (How Things You Do Change Your Brain)

  • 167 17
    羅紹桀 發佈於 2021 年 01 月 14 日
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