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Origin of Deja Vu Pinpointed


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#16 plindboe

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Posted 16 July 2007 - 02:44 PM

To think that there is almost 80 to 90% of our brain that is not used, what wonders are held within?!


That's a myth, sorry.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." (Bertrand Russell)

#17 Oniix

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Posted 24 July 2007 - 03:45 PM

It's not that it goes completely unused, but parts of it are not active during different types of brain function.

It's just that the whole thing doesn't "fire up" with every thought or stimuli.

#18 NotSure

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Posted 25 July 2007 - 06:24 PM

Weird, I was pretty sure that Deja Vus occur less often the older you get. I remember getting this feeling of Deja Vu often when I was younger, now I haven't had this in quite a long time.
What do you say? Does the occurence of Deja Vus increase with age? Or does it decrease? If it decreases then their wonderful explanation for Deja Vus would be refuted....

I once read that Deja Vus are the consequence of a delay between visual/oral/... input and the brain processing that input. I'd say that explanation makes a lot of sense.

Edited by NotSure, 25 July 2007 - 06:25 PM.


#19 Zulphur

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Posted 26 July 2007 - 01:30 PM

by Dave Mosher Thu Jun 7, 2:20 PM ET

The brain cranks out memories near its center, in a looped wishbone of tissue called the hippocampus. But a new study suggests only a small chunk of it, called the dentate gyrus, is responsible for “episodic” memories—information that allows us to tell similar places and situations apart.

The finding helps explain where déjà vu originates in the brain, and why it happens more frequently with increasing age and with brain-disease patients, said MIT neuroscientist Susumu Tonegawa. The study is detailed today in the online version of the journal Science.

Like a computer logging its programs’ activities, the dentate gyrus notes a situation’s pattern—it’s visual, audio, smell, time and other cues for the body’s future reference. So what happens when its abilities are jammed?

When Tonegawa and his team bred mice without a fully-functional dentate gyrus, the rodents struggled to tell the difference between two similar but different situations.

“These animals normally have a distinct ability to distinguish between situations,” Tonegawa said, like humans. “But without the dentate gyrus they were very mixed up.”

Déjà vu is a memory problem, Tonegawa explained, occurring when our brains struggle to tell the difference between two extremely similar situations. As people age, Tonegawa said déjà-vu-like confusion happens more often—and it also happens in people suffering from brain diseases like Alzheimer’s. “It’s not surprising,” he said, “when you consider the fact that there’s a loss of or damage to cells in the dentate gyrus.”

As an aging neuroscientist, Tonegawa admitted it’s a typical phenomenon with him. “I do a lot of traveling so I show up in brand new airports, and my brain tells me it’s been here before,” he said. “But the rest of my brain knows better.”



http://news.yahoo.co...ejavupinpointed

I have a strange feeling I´ve read this before......
"That is not deadWhich can eternal lieYet with strange aeonsEven death may die."'(H.P. Lovecraft)

#20 GothInk

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Posted 07 August 2007 - 04:11 AM

Weird, I was pretty sure that Deja Vus occur less often the older you get. I remember getting this feeling of Deja Vu often when I was younger, now I haven't had this in quite a long time.
What do you say? Does the occurence of Deja Vus increase with age? Or does it decrease? If it decreases then their wonderful explanation for Deja Vus would be refuted....

I once read that Deja Vus are the consequence of a delay between visual/oral/... input and the brain processing that input. I'd say that explanation makes a lot of sense.


I agree with you there NotSure. When I was a child I experienced Deja Vu quite alot, but as I grew up it became less frequent, and now as an adult, it has been years between experiences of it. If it were a paranormal thing, then this would make sense as children are said to be more open to, or sensitive to it, and lose the ability as they get older.
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#21 autumnbelle

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Posted 07 August 2007 - 05:47 AM

What about the cases of Deja Vu that are so strong people not only feel as if they have lived it before, they can actually lead you about places they 'have never been'? That might not be classified under Deja Vu . . .

Eat, drink and be scary. ~Author Unknown


#22 Darkwoods

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Posted 09 August 2007 - 08:27 PM

The aura before my seizures was a deja vu feeling. I had a hemorrhaging lesion removed from that part of my brain, along with surrounding tissue. Now I have short-term memory problems. I used to experience "phantom" smells and tastes, too. The brain can really mess with your, uh, mind... :Spaz:

Edited by Darkwoods, 09 August 2007 - 08:28 PM.


#23 sekhlev

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Posted 17 January 2008 - 12:39 PM

The aura before my seizures was a deja vu feeling. I had a hemorrhaging lesion removed from that part of my brain, along with surrounding tissue. Now I have short-term memory problems. I used to experience "phantom" smells and tastes, too. The brain can really mess with your, uh, mind... :D

Yeah, I used to have strong feeling of deja Vu when I lived in Portugal and was in my teens.
Since I moved to the US, they have completely stopped. I have no had a Deja Vu in 13 years ( as long as I been living in the US)
So..not quiet sure about this.. of course I am getting older...and they have stopped

#24 qtswede

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Posted 16 February 2008 - 10:01 PM

I have had many deja vu experiences, and they have not faded with age for me, anyhow. BUT the most strongly imprinted one is one that I dreamt of when I was a child, then saw come to fruition during my freshman year. I knew NONE of the people in the incident until that year that I lived it rather than dreamt it... bizzare.

#25 secretsign

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Posted 21 February 2008 - 09:39 AM

If someone started messing with my brain I think I would be more than a little confused..


I always have moments of VU JaDe. Knowing I been there and aint gonna do it again...hehe
Slainte mhor agus a h-uile beannachd duibh Good health and every blessing to you

#26 Axman

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Posted 22 February 2008 - 11:39 PM

"It's like DeJa Vu all over again."--Yogi Berra

Edited by Axman, 22 February 2008 - 11:39 PM.

Ah. Well... I attended Juilliard... I'm a graduate of the Harvard business school. I travel quite extensively. I lived through the Black Plague and had a pretty good time during that. I've seen the EXORCIST ABOUT A HUNDRED AND SIXTY-SEVEN TIMES, AND IT KEEPS GETTING FUNNIER EVERY SINGLE TIME I SEE IT... NOT TO MENTION THE FACT THAT YOU'RE TALKING TO A DEAD GUY... NOW WHAT DO YOU THINK? You think I'm qualified? --BeetlejuiceI'm the ghost with the most, babe.--BeetlejuiceWe've come for your daughter Chuck--Beetlejuice

#27 Atropa belladonna

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Posted 26 May 2008 - 03:50 PM

CRUDDDDDDDDDDDD!!!!!!!!!! :hug: :(

Does that mean I started becoming an old fart when I was still a kid?

What a bummer.










Wait this feel familiar, didn't I say all that before?!!

:)

Time exists so everything doesn't happen at once.Space exists so everything doesn't happen to you.*

Be happy while you're living, for you're a long time dead.*-- Scottish Proverb





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