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These Theories Might Explain What Causes Déjà Vu

Ground hog day? - by Allen Pike
  • 13 Mar 2018
These Theories Might Explain What Causes Déjà Vu
Ground Hog Day

Ever lived through a moment where everything looks familiar? While you begin to put the pieces together, all of a sudden, it's as if you've seen this all before, perhaps in your dreams. Yup, you're not alone. Déjà vu is the name of this phenomenon and scientists might have a few theories to explain it. 

According to a piece published in The Conversation researchers have drawn links between brain activity and déjà vu.

One theory suggests that déjà vu may be caused by a similar reaction as seizures. 

Beginning in the medial temporal, seizures are an electrical overload in the brain. Scientists believe that this could explain why you think you've seen it all before. Reporters believe that if an electrical overload occurs in the rhinal cortices portion of the brain, a false signal would be sent, convincing the brain that it's seen something before that it hasn't.

However, that wasn't the only possible reason for the experience. 

Investigators believe that déjà vu could also be caused by memory failure. At times, if the brain is unable to categorise an event in the short-term memory section of the brain, instead it files it away in the long-term memory section. Your brain tricks you into thinking that you've experienced this situation before.  

You may also note the sudden confusion you experience after your own ground hog day experience. Science believes that's caused by your brain trying to correct itself. 

While scientific theories pose the most reasonable explanations, of course there are plenty of guesses that you might only expect to see in a Sci-Fi thriller. 

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