Thread by @its_krutika

An intriguing thread for an amazing ride to know about brain phenomena which happens in our lives.

●● Deja Vu ●●

Content in thread;
💥 Déjà vu
💥 Jamais vu
💥 Vuja de

PS: all images and facts credit remains with owner.

💥 Déjà vu

It describes the uncanny sensation that you’ve already experienced something, even when you know you never have.

Eg.:  you’re exploring a new city for the first time and all at once feel as if you’ve walked down that exact tree-lined footpath before.

Note:

You might feel a little disoriented and wonder what’s going on, especially if you’re experiencing déjà vu for the first time.

But it can happen with you on varied basis. Some people experience it in months, twice in year, some people may don't get deja vu for years.

There’s no conclusive evidence on how common it actually is, but varying estimates suggest anywhere between 60-80% of the population experience this phenomenon.

🔺️ Researchers can’t easily study déjà vu, partially because it happens "without warning" and often in people without underlying health concerns that might play a part.

You might don't even know what is it, it happens within seconds.

📌 Experts suggest several different causes of déjà vu.

Most agree it likely relates to memory in some way. Below are some of the more widely accepted theories....

Theory 1:
• Split perception

The theory of split perception suggests déjà vu happens when you see something two different times.

Ex.: while you were travelling you glanced at one hillside, you DIDN'T paid much attention to it at that time (this is 1st time you see it).

Now after some days you plan a trip to that hillside (2nd time you'll be seeing it).

Our brain captures n analyze millions of things in a day. Now when you had glanced at that hill while traveling you were focusing more on travel not on hill (detailed manner). But your brain was

Your brain had captured few details of that scenery. Without your acknowledgement.

& now when 2nd time you visit there those captured pictures will come infront of your eyes (perception) that this place is familiar, 'I have seen this'.

but there will be no explanation.

DEJA VU

Theory 2:
This theory has 3 beliefs under brain functioning.

1️⃣ Minor brain circuit malfunctions

Theory suggests déjà vu happens when your brain “glitches,” so to speak, and experiences a brief electrical malfunction — similar to what happens during an epileptic seizure.

In simple:

It can happen as a sort of mix-up when the part of your brain that tracks PRESENT events and the part of your brain that recalls MEMORIES are both active.

Your brain falsely perceives what’s happening in the present as a memory, or something that already happened.

2️⃣ When ur brain absorbs info, it generally follows a specific path from short-term memory storage to long-term memory storage.
Here, short-term memories can take a shortcut to long-term memory storage.

Feel as if retrieving a long-ago memory & not that happend in last second.

3️⃣ Delayed processing.

You observe something, but the information you take in through your senses is transmitted to your brain along two separate routes.

One of these routes gets the information to your brain a little more rapidly than the other.

This delay may be extremely insignificant, as measurable time goes, but it still leads your brain to read this single event as two different experiences.

Theory 3:
• Memory Recall

The way you process and recall memories.

📌 Research by Anne Cleary, a déjà vu researcher & psychology professor at Colorado State University, has helped generate some support for this theory.

Have a look at the talk:

This process of implicit memory leads to the somewhat odd feeling of FAMILIARITY.
If you could recall the similar memory, you’d be able to link the two & likely wouldn’t experience déjà vu at all.

See ex.; 2 different bedrooms but coz of color scheme, furniture it looks similar.

This commonly happens, according to Anne Cleary, when you see a particular scene, like the inside of a building or a natural panorama, that’s very similar to one you don’t remember.

See at the example below:

Other beliefs:

The belief that déjà vu relates to some kind of psychic experience, such as remembering something you’ve experienced in a previous life or in a dream.

➡️Keeping an open mind is never a bad thing, but there’s NO evidence to support either of these ideas⬅️

Experiencing it very rarely is okay.
Déjà vu often has no serious cause, but it can happen just before or during Epileptic seizures.

But focal seizures, while common, aren’t always immediately recognizable as seizures.

Here the concern arises.

💥 Jamais Vu
The flip side to deja vu is something that Chris Moulin calls jamais vu, which is french for 'never seen.'
(Pic 2: a book by Chris)

"Have you had this sensation where you look at a word for a long long time and it starts to look strange?
.
.
.

Like it might be spelt wrong, or did you like sometimes go to write a word and then think, 'hang on a minute, is it spelt like that? No that looks completely weird!'"

Ex.: When you continously say a word rapidly and suddenly you pause n think.. "does this word even exist?"

Chris asked 92 volunteers to write out “door” 30 times in 60 seconds. He reported that 68% of his guinea pigs showed symptoms of jamais vu, such as beginning to doubt that “door” was a real word.

This has lead him to believe that jamais vu may be a symptom of brain fatigue.

➡️Presque vu
Is similar to, but distinct from, the phenomenon called tip of the tongue situation where someone cannot recall a familiar word or name, but with effort eventually recalls the elusive memory.

This happens many a times.

💥 Vuja de

In contrast to deja vu, vuja de describes experiencing something "familiar" as if it were "strange and unknown".

This can happen, for example, when you suddenly understand a certain feeling or situation entirely differently. (Change in perspective)

After an incident in your life or at a moment when you realise "Oh life is much more than what we think"

Ex:
During childhood days I thought; once I complete my studies I'll be free from books.
But, meaning changed!
I have to think about career, family, finances, etc.

Even though you may have struggled a great deal and may not know when your suffering will end, your life can turn around for the better.

Ex: Some people find new meaning in life after surviving a traumatic accident, natural disaster, or near-death experience.

This search for meaning & healing often continues as we strive to understand life’s mysteries & our own ways of being.

As a result of your journey, u can gain greater awareness, more love & appreciation for life, a spiritual connection, & an improved approach & outcome to life.

📌Conclusion📌

This phenomenon probably relates to memory in some way. So, if you have déjà vu, you might have experienced a similar event before. You just can't remember it.

If it only happens once in a while, you probably don't need to worry about it.

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