Most of us know this strange feeling that you have already seen the moment you are experiencing in the present, and for which your whole mind screams that it is the first time. The phenomenon of the legendary Deja Wu (from French - "already seen") turns out to be just a feeling and nothing more. So far, there were many explanations that ranged from supernatural events, such as the person experiencing an event as familiar, because it is seen in the "previous life" or because it has "been there" dream, to research, such as that déjà vu is obtained a faint fit of the frontal part of the brain.
But the most popular explanation so far is based on memory. Just as word can be "at the top of the tongue", so a memory can be "on top of the tongue" - but not exactly accessible. According to cognitive psychologist Ann Cleary, the sensations of prior acquaintance that accompany the phenomenon are just that: sensations. Statistics show that a person with a deva vu has exactly the same probability and no greater than the probability of a person in a normal state predicting what will happen in the next second. "We can not recall a previous place or event, but our brains recognize the similarity. It is this information that comes as an unusual sensation. My hypothesis is that Daja Wu is a definite manifestation of acquaintance - you are experiencing familiarity when you do not, and here comes the feeling of unusualness of devawu, "Cleary explains.