Definition of deja vu - What is it, Meaning and Concept

Deja vu or deja vu is a French term that means “already seen” .The concept describes the sensation a person experiences when to think that has already lived before a fact that, in reality, is new.The person responsible for cradling the term was Emile Boirac , a French parapsychologist who was born in 1851 and died in 1917.

Phrases where the term appears: «I had a deja vu: I feel like I was in this house before» , «I saw the news and thought it was a deja vu », « Tell Claudio that he is not a deja vu: I already told him about ten times that he has to read the report and make a summary ».

El deja vu, also known as paramnesia , makes the subject feel that he is experiencing something familiar but, at the same time, finds it strange.In general, despite people's beliefs , the supposed previous experience is attributed to dreamlike creations.

In general, the deja vu is divided into two classes: the deja vecu (what the individual feels he has already lived ) and the deja senti (something that the person already felt, although not part of the memory baggage).

According to the studies developed around this concept, deja vu is associated with the memories that a person has (either because of something he has lived, felt or sounded) and is an experience that especially affects young people whose age is between 15 and 25.

There are people who suffer from deja vu chronico, that is to say that absolutely everything they live perceives it as having already happened.These individuals are prone to suffer depression and memory dysfunctions.

Most people with this pathology have suffered a head injury or claimed that for a while they felt chronic pain, symptoms possibly related to a physical deficiency caused by deja vu, a deficit in the functioning of the temporal lobe.It is also a disorder that could be linked to high levels of stress and fatigue, with random alterations of memory , crisis of epilepsy or dreamlike or unconscious fantasies .

As explained by scientists from the University of Leeds , those who suffer chronic deja-vu, have an over activity in the memory processing circuit; that is to say that he never relaxes, he is remembering all the time.They added that in addition the way of storing the facts is different from that of the sensations that these facts cause him and there is a mismatch between both actions that in any other person they work together.

It should be noted that those who suffer from this disease are very afraid of being left alone, because they perceive that this phenomenon is more powerful than them and not they know how to face it; In addition, the constant repetition of the sensation that causes this disorder, in many cases can trigger a depression.

A programmer friend gave me an absolutely simple explanation about this complex issue, which I would like to share.Imagine that your brain has a space to store memories and another where it analyzes the experiences that are taking place in the present.And that for some reason, before analyzing the present, I will keep it as a memory.In that case, the brain would understand the present as a memory .Simple to understand, right?

Finally, it is worth mentioning that deja vu is frequently mentioned in popular culture or artistic works.In the cinema, the movie Matrix shows deja vu as a failure that can be perceived in the system .On the other hand, Deja Vu is the title of a film starring Denzel Washington , where the phenomenon is explained as warning signs that come from the past or signs for the future.