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  • [MUSIC]

  • [MUSIC]

  • [MUSIC]

  • Psychologist Endel Tulving said, “Remembering is mental time travel”.

  • Soy Latte for Joe

  • Thanks.

  • Remembering is one of the greatest powers we possess

  • [SNEEZE]

  • the ability to learn from our past, to return to where we have already been, so we can decide

  • where we're going.

  • "Oh man…"

  • But can we return to where wevenever been?

  • Soy Latte for Joe

  • Yeahhuh thanks?

  • Could have sworn I just-

  • [SNEEZE]

  • Is it just me, or does this seem familiar? Feel I’ve seen this before.

  • "Oh man…"

  • Or as the French would say… déjà vu

  • As many as 90 percent of us will experience déjà vu during our lives, mainly in our

  • teens and 20s, and almost never before age 8 or 9.

  • Déjà vu isn’t a physical phenomenon we can pinpoint in a brain scan. It’s a feeling,

  • and not one that we totally understand. But weve got a few theories.

  • Our memories aren’t exact copies that we just write once and then store like files

  • on a computer, or pictures in a box under our bed. Remembering is really more like reliving.

  • Our brains are constantly scanning our senses to determine if what were experiencing

  • is familiar.

  • And once our brains label a stimulus as familiar, a different brain region called the hippocampus

  • recalls the memory associated with it, re-firing the neural circuits that hold that piece of

  • our past, and we live the experience again in our minds.

  • If these steps get out of sync, if something is deemed familiar, but we fail to recall

  • the context, that could be déjà vu.

  • But that doesn’t explain why we can feel déjà vu for experiences that are truly unfamiliar,

  • or why we don’t feel it for every familiar thing.

  • Soy Latte for Joe

  • Yep.

  • We don’t realize how hard our brain works behind the scenes, filtering our environment

  • [SNEEZE]

  • Gesundheit!— unconsciously determining if what were experiencing is newuntil

  • it doesn’t work. Oh!

  • "Oh man…"

  • Our various sensory inputssmells, sounds, sights, are normally processed and mixed together

  • as one event.

  • Another déjà vu theory says if one of those stimuli is recorded out of sync, the late

  • arriving information could be flagged as a different event, which makes it feel as if

  • it’s happened before.

  • Or it could be a malfunction in how memories are made in the first place. Normally, new

  • experiences stop off in our short term memory before being written into long-term storage.

  • Skip the first, and it could feel like were recalling new events as old ones.

  • Or perhaps when we focus on one part of our environment, the rest of our world drifts

  • to the unconscious, and when we snap back to reality it feels like weve been there

  • beforebecause we have. Just now.

  • These feelings of misplaced familiarity, arefamiliar to us, but the what, the where, and

  • the why of déjà vu remain unknown.

  • Soy Latte for

  • Got it thanks. All in all, there are dozens of plausible explanations for it, maybe more

  • than one is right. Bless you!

  • There’s no neat answer, but no mind, or memory, is perfect. The only way well get

  • to the bottom of déjà vu is to experience itall over again.

  • "Oh man…"

  • Yeah, I couldve. Stay curious.

[MUSIC]

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B1 中級

デジャヴとは何か! (What is Déjà Vu?!)

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    Ray Du に公開 2021 年 01 月 14 日
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