That's why you experience deja vu!

Scottish professor Akira O'Connor he believes that the "error in the Matrix" is just a re-examination that our brains make to confirm what we have already seen. For this claim, he conducted a series of experiments that included, among other things artificial induction reminiscent of deja vu. The method was based on telling the research participants a certain number of words, which were connected by common but deliberately omitted concepts. For example, in the series of words pillow, bed, night, there was no word sleep. After a series of words, research participants were thus asked to say did they hear the word starting with the letter "s" among the words. The answer was negative. When asked the same question later, participants mostly said sleep. They started to think that they actually heard the word, as it was a perfectly logical addition to the string of words. The brains of the participants are like that reinterpreted their memories, giving the participants a strong sense of deja vu.

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Using magnetic resonance imaging, they found that the most active areas of the brain in those moments were those that responsible for making decisions, and not those responsible for memory. O'Connor thus assumes that these parts of the brain create a sense of deja vu, as they accompany our memories and in them looking for faults. When they find inconsistencies, they immediately activate, and we get an eerie feeling, as if we have seen it before or it has happened to us.
Researcher Stefan Köhler from Canada believes that we can during deja vu in our brains dispute resolution is underway.
Much more data will need to be collected before this theory can be proven. But if this is actually true, we have finally found out the secret of deja vu. So that will mean yes the brain they check the quality of our memories and look for discrepancies between what we really remember and what we think we remember.