Deja vu is a very strange and in some cases even unsettling sensation that always causes some confusion. A certain sound, place, or sentence said by someone is perceived as something familiar and makes it feel like if we had previously found ourselves in this situation.
The first visit to a store which made you think that you have already been there once, or the painfully familiar face of a person you see for the first time are all symptoms of deja vu.
The French term déjà vu can be translated as “already seen.” However, even if we are insistently trying to recall exactly when we saw it, it is impossible. Deja vu is linked to several concepts: deja vecu – «already experienced», deja entendu – «already heard» and jamais vu – «never seen». The last term refers to the opposite phenomenon of deja vu – when a person does not recognize familiar objects.
It is scientifically proven that deja vu is experienced by almost 70 % of people, so do not be surprised if it will happen to you one day. Typically, this weird sense lasts for 30 seconds, with a few exceptions.
People have come up with a lot of explanations for this strange phenomenon. Scientists develop original theories, eastern religion links deja vu directly to the reincarnation, and psychiatrists suggest that déjà vu is a symptom of a serious mental disorder.
One of the most common explanations of the phenomenon is the influence of our past-life events and experiences on our present life. Many people, including researchers, sustain this theory.
However, it is not the only explanation for deja vu. Some experts say that people experience this phenomenon in the places they have once been to or read about, but then forgot. Thus, getting in a familiar environment, our brain revives old memories.
According to another theory, deja vu occurs because of a “lost experience.” Proponents of this hypothesis argue that it is associated with a kind of failure in the brain, which leads to the fact that new information is considered to be old, that is, the brain stores and recalls it simultaneously.
Some scientists explain the effect of deja vu with the fact that people experience it because they were once faced with a similar situation in a dream. The phenomenon occurs because the brain has already once received and processed the same information at the time of dreaming.
Another interesting theory to note is the so-called hologram theory which argues that the perception and memories are like holograms. It was originally developed by Dutch scientist Hermon Sno. Deja vu occurs when two hologram elements are formed in one piece. For example, what is happening now coincided with fleeting memories of the past and this all caused deja vu.
Despite the existence of a large number of theories concerning the origin of this mysterious phenomenon, no proof has been found so far. Let us hope that one day scientists will find the answer to this question.
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