CNN News: 似曾相識

This next segment is going to trigger some serious deja vu. It`s not because we`ve covered it before, but if some reason you think we have, you`re probably in the age range when people experience deja vu the most often.

下面的內容將會引起時空效應。并不是因為我們之前報道過類似的現象，如果你覺著我們有理由的話，可能在這個年齡段的人都有過似曾相識的感覺。

Dr. Sanjay Gupta explores what it is exactly and the latest ideas from the medical community about why we experience it.

?；?middot;普塔博士探索了時空效應到底是什么，并且從醫(yī)學界的最新觀點探索了我們?yōu)槭裁磿羞@樣的體驗。

You know, I suddenly have this feeling that I`ve told you this before.

我突然就有了那種感覺，之前我就跟你跟你說過。

You know, it happens without warning, the strange feeling that you`ve been there, done that, even though you know you never have.

這種感覺沒有任何警示，這種奇怪的感覺仿佛你去過一些地方，做過一些事情，而實際你從沒有到過那些地方。

The French have a word for it deja vu, meaning already seen.

在法語中有一個詞用來解釋“deja vu”，這個詞的意思是已經見過了。

Now, while some claimed deja vu is a evidence of the paranormal such as past lives or alien abductions, other says we partially absorb scenes from television or movies to feel a sense of familiarity. It could be that our visual cortex is so fast at sending signals to our memory center, the hippocampus, that some believe the feeling of having seen it before is true, and it is true, but we saw it just a split second earlier.

現在，一些人聲稱這是前世或者外星人綁架的超自然現象，而其他人稱我們能從電視或者電影中獲得熟悉的感覺。這種現象發(fā)生可能是因為我們的視覺皮質在向記憶中心，“海馬體”發(fā)送信號時，速度很快。有些人認為，這種似曾相識的感覺是真的，這是的確真的，但是我們對這種畫面僅是稍縱即逝。

About two-thirds of us experience deja vu, and oddly enough, it seems to happen most often between the ages of 15 and 25. So, it could be linked to the ongoing development of the brain. Scientists aren`t really sure. Because deja vu occurs randomly among healthy people, it`s been hard to study.

大約有2/3的人有過這種時空效應，奇怪的是，這種現象常發(fā)生在15到25歲的群體中。因此，它可能與大腦持續(xù)發(fā)展有關?？茖W家們也并不確定。因為這種似曾相識的感覺是在健康人體中時隨機發(fā)生的，因此很難進行研究。

Now, we do know deja vu occurs in the medial temporal lobe, that`s this area of the brain over here. That`s where the rhinal cortex, the part of the brain that helps us recognize familiar, interacts with the hippocampus, that`s the part of the brain that stores details of specific memories.

現在，我們知道這種現象發(fā)生在內側顳葉，這大腦的區(qū)域。這是頂葉皮層，此部分有利于幫助我們識別熟悉的場景，并與海馬體相互作用，大腦此處區(qū)域用于存儲特定記憶的詳細信息。

Perhaps signals there get crossed, could be that brain circuits convulsed in an almost sort of seizure. And actually, you know what? That makes sense, because people with epilepsy do experience deja vu at the onset of the seizure. So, it`s now on epilepsy where most of today`s research is underway. In fact, neurologists have been able to trigger deja vu and people with epilepsy by stimulating, you guessed it, their medial temporal lobes.

也許信息會交叉，這可能是因為大腦回路震撼引起的。實際上，你知道嗎?這是講得通的，因為癲癇患者在發(fā)病時，會產生似曾相識的感覺。所以，現在癲癇病的研究正在進行中。實際上，神經學家已經能夠通過刺激癲癇患者的內側顳葉觸引發(fā)似曾相識的感覺。