Déjà vu & Jamais Vu

Déjà vu & Jamais Vu

Déjà vu is a French phrase that translates literally to "already seen". It is a loanword adopted into English to describe the, often fleeting, psychological sensation of having already experienced a current situation. It consists of déjà ("already") and vu ("seen", past participle of voir). 

Origin: Coined/popularized in France, with a potential origin in 1876 by philosopher Émile Boirac.

Why it happens?

In other words, it happens when there’s a miscommunication between two parts of your brain: The one responsible for memories (your temporal lobe) and the one responsible for taking in new information ( your hippocampus).

Jamais Vu

Jamais vu is a French phrase. It translates literally to "never seen". In psychology, it describes the phenomenon where a familiar situation, word, or person feels suddenly new, strange, or unfamiliar. It is commonly considered the opposite of déjà vu (already seen). 

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Health conditions 

Some health conditions can cause this memory glitch -

Fatigue or sleep deprivation: If you’re not getting enough sleep (or enough restful sleep), it can disrupt the recognition processes in your brain. 

Stress and anxiety: In times of stress, your brain can change how you perceive and process information. It’s a kind of coping mechanism to create some distance between what’s happening around you and how you’re experiencing it.

Migraines: People who are prone to migraines may find that they experience déjà vu either during the aura phase or during the migraine episode itself. Migraine pain can be disorienting and make it harder to process new information and recall memories.

Dementia: People who have frontotemporal dementia often experience persistent déjà vu and tend to try to rationalize the illusion.

Temporal lobe epilepsy and seizures: Not all seizures are what you see in the movies. “Seizures that are restricted to the temporal lobe can cause a misfire that creates the feeling of déjà vu, rather than shaking or other motor symptoms,” Dr. Khoury reports.


Compiled by

Naresh kuwar 







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