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The Opposite of Déjà Vu Is Even More Uncanny
Science Alert ^ | 09 August 2024 | Akira O'Connor & Christopher Moulin

Posted on 08/09/2024 11:54:20 AM PDT by ShadowAce

Repetition has a strange relationship with the mind. Take the experience of déjà vu, when we wrongly believe we have experienced a novel situation in the past – leaving us with an spooky sense of pastness.

But we have discovered that déjà vu is actually a window into the workings of our memory system.

Our research found that the phenomenon arises when the part of the brain which detects familiarity de-synchronises with reality. Déjà vu is the signal which alerts you to this weirdness: it is a type of "fact checking" for the memory system.

But repetition can do something even more uncanny and unusual.

The opposite of déjà vu is "jamais vu", when something you know to be familiar feels unreal or novel in some way. In our recent research, which has just won an Ig Nobel award for literature, we investigated the mechanism behind the phenomenon.

Jamais vu may involve looking at a familiar face and finding it suddenly unusual or unknown. Musicians have it momentarily – losing their way in a very familiar passage of music. You may have had it going to a familiar place and becoming disorientated or seeing it with "new eyes".

It's an experience which is even rarer than déjà vu and perhaps even more unusual and unsettling. When you ask people to describe it in questionnaires about experiences in daily life they give accounts like: "While writing in my exams, I write a word correctly like 'appetite' but I keep looking at the word over and over again because I have second thoughts that it might be wrong."

In daily life, it can be provoked by repetition or staring, but it needn't be. One of us, Akira, has had it driving on the motorway, necessitating that he pull over onto the hard shoulder to allow his unfamiliarity with the pedals and the steering wheel to "reset". Thankfully, in the wild, it's rare.

Simple set up

We don't know much about jamais vu. But we guessed it would be pretty easy to induce in the laboratory. If you just ask someone to repeat something over and over, they often find it becomes meaningless and confusing.

This was the basic design of our experiments on jamais vu. In a first experiment, 94 undergraduates spent their time repeatedly writing the same word. They did it with twelve different words which ranged from the commonplace, such as "door", to less common, such as "sward".

We asked participants to copy out the word as quickly as possible, but told them they were allowed to stop, and gave them a few reasons why they might stop including feeling peculiar, being bored or their hand hurting.

Stopping because things began to feel strange was the most common option chosen, with about 70% stopping at least once for feeling something we defined as jamais vu. This usually occured after about one minute (33 repetitions) – and typically for familiar words.

In a second experiment we used only the word "the", figuring that it was the most common. This time, 55% of people stopped writing for reasons consistent with our definition of jamais vu (but after 27 repetitions).

People described their experiences as ranging from "They lose their meaning the more you look at them" to "seemed to lose control of hand" and our favourite "it doesn't seem right, almost looks like it's not really a word but someone's tricked me into thinking it is."Image of paper with the word Try writing 'the' 33 times. (Christopher Moulin, CC BY)

It took us around 15 years to write up and publish this scientific work. In 2003, we were acting on a hunch that people would feel weird while repeatedly writing a word. One of us, Chris, had noticed that the lines he had been asked to repeatedly write as a punishment at secondary school made him feel strange – as if it weren't real.

It took 15 years because we weren't as clever as we thought we were. It wasn't the novelty that we thought it was. In 1907, one of psychology's unsung founding figures, Margaret Floy Washburn, published an experiment with one of her students which showed the "loss of associative power" in words that were stared at for three minutes. The words became strange, lost their meaning and became fragmented over time.

We had reinvented the wheel. Such introspective methods and investigations had simply fallen out of favour in psychology.

Deeper insights

Our unique contribution is the idea that transformations and losses of meaning in repetition are accompanied by a particular feeling – jamais vu.

Jamais vu is a signal to you that something has become too automatic, too fluent, too repetitive. It helps us "snap out" of our current processing, and the feeling of unreality is in fact a reality check.

It makes sense that this has to happen. Our cognitive systems must stay flexible, allowing us to direct our attention to wherever is needed rather than getting lost in repetitive tasks for too long.

We are only beginning to understand jamais vu. The main scientific account is of "satiation" – the overloading of a representation until it becomes nonsensical.

Related ideas include the "verbal transformation effect" whereby repeating a word over and over activates so-called neighbours so that you start off listening to the looped word "tress" over and over, but then listeners report hearing "dress," "stress," or "florist".

It also seems related to research into obsessive compulsive disorder (OCD), which looked at the effect of compulsively staring at objects, such as lit gas rings. Like repeatedly writing, the effects are strange and mean that reality begins to slip, but this might help us understand and treat OCD.

If repeatedly checking the door is locked makes the task meaningless, it will mean that it is difficult to know if the door is locked, and so a vicious cycle starts.

Ultimately, we are flattered to have been awarded the Ig Nobel prize for literature. The winners of these prizes contribute scientific works which "make you laugh and then make you think".

Hopefully our work on jamais vu will inspire more research and even greater insights in the near future.The Conversation



TOPICS: Education; Health/Medicine; Miscellaneous
KEYWORDS: consciousness; dejavu; jamaisvu; mind
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1 posted on 08/09/2024 11:54:20 AM PDT by ShadowAce
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To: ShadowAce
When reading the news I get a profound sense of Deja Moo.

The feeling I have seen this BS before. :)

2 posted on 08/09/2024 11:58:08 AM PDT by Harmless Teddy Bear ( Roses are red, Violets are blue, I love being on the government watch list, along with all of you.)
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To: ShadowAce

Science is so...


3 posted on 08/09/2024 11:59:29 AM PDT by xoxox
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To: ShadowAce

When I was a little kid I knew exactly how to get to a hotel in a city the family had never visited when we were on vacation. Don’t ask me how or why. I just knew. Weird things happen....


4 posted on 08/09/2024 12:00:38 PM PDT by Organic Panic (Democrats. Memories as short as Joe Biden's eyes)
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To: ShadowAce

https://youtu.be/G2eUopy9sd8?si=h30pEABgIty20_fl


5 posted on 08/09/2024 12:02:45 PM PDT by Disambiguator
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To: ShadowAce

You mean Vuja De

https://youtu.be/B7LBSDQ14eA?si=CmWqsW0LhTEWojaW


6 posted on 08/09/2024 12:03:07 PM PDT by Red6
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To: ShadowAce

I’ve sometimes had the experience of writing a word correctly but feeling it looked unfamiliar and wrong...


7 posted on 08/09/2024 12:03:23 PM PDT by Jamestown1630 ("A Republic, if you can keep it.")
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To: ShadowAce

Jamais vu happens when the simulation breaks. Like when a Biden double doesn’t quite put the silicone mask on correctly.


8 posted on 08/09/2024 12:04:34 PM PDT by Mr. Jeeves ([CTRL]-[GALT]-[DELETE])
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To: ShadowAce

In the few times I have played the lottery, I had the ability to pick the 6 numbers that did not get drawn. I have a near 100% record.


9 posted on 08/09/2024 12:09:29 PM PDT by Dutch Boy (The only thing worse than having something taken from you is to have it returned broken. )
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To: Dutch Boy

I can do that too!


10 posted on 08/09/2024 12:11:26 PM PDT by algore
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To: algore

It’s an amazing power. We need to use it responsibly.


11 posted on 08/09/2024 12:15:22 PM PDT by Dutch Boy (The only thing worse than having something taken from you is to have it returned broken. )
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To: ShadowAce

It’s Jamais vu all over again.


12 posted on 08/09/2024 12:27:38 PM PDT by Beowulf9
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Conch-iousness.
Conch-iousness.

13 posted on 08/09/2024 12:34:07 PM PDT by SunkenCiv (Putin should skip ahead to where he kills himself in the bunker.)
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To: ShadowAce

This is probably what makes Kamala Harris think she’s smart.


14 posted on 08/09/2024 12:40:22 PM PDT by Track9 (If you want to know about human nature, read a power tool user manual. )
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To: Track9

When in fact it’s just her head bobbing up and down that makes what she’s doing seem original and new.


15 posted on 08/09/2024 12:42:53 PM PDT by Track9 (If you want to know about human nature, read a power tool user manual. )
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To: ShadowAce

I think they have known this for years; Freeways are now curved every few miles to prevent fatigue.


16 posted on 08/09/2024 12:43:28 PM PDT by Greg123456
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To: ShadowAce
Musicians have it momentarily – losing their way in a very familiar passage of music.

Some musicians insist on sight reading, even if they are soloists in a concert, but even then, I've seen pros suddenly "forget" how to read music in high stress situations. Don't ask me how that works. I've always memorized music quickly and committed it to muscle memory through repetition, but then, too, I've gotten lost, and had to fall back on Jazz training to fake it until the wheels get back on track. One smart ass came up after a recital and said "That was an interesting bit of Chopin modulation in the 2nd movement of the Beethoven."

17 posted on 08/09/2024 12:47:59 PM PDT by Sirius Lee (Trump/Vance 2024 or GFY)
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To: Harmless Teddy Bear; Rennes Templar
Five Moos for U!

🐮🐮🐮🐮🐮

Don't get me started with Deja Lose. Happens all the time!

🔑 👓 🕶️ 🧠

18 posted on 08/09/2024 12:50:13 PM PDT by Ezekiel (🆘️ "Come fly with US". 🔴 Ingenuity -- because the Son of David begins with MARS ♂️, aka every man)
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To: ShadowAce

“Ig Nobel award for literature”

That does not sound like anything to be proud about. Is it anything like a pride parade?


19 posted on 08/09/2024 1:25:43 PM PDT by ChessExpert (Scarborough: "This is the Best Biden ever.")
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To: ShadowAce

I first heard of Jamais Vu back in the early 1980s, In one of Eric Van Lustbader’s entertaining ‘Nicholas Linnear’ novels.


20 posted on 08/09/2024 2:12:49 PM PDT by LegendHasIt
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