What is deja vu and why is it happening?

Probably, every person in his life at least once heard or was familiar with a situation like deja vu. It is a moment that you have already passed - a meeting, a conversation, gestures and phrases, it seems that you have already experienced this. For this reason it is quite understandable why people ask questions and try to study this moment in as much detail as possible.

Scientists have proved that the secret of these effects lies in the functions of the brain, but no one has studied and experimented with it deeply, for the reason that even a slight interference in brain activity can make a person deaf, invalid, deprive of sight and lead to others consequences.

What causes deja vu?

There is a two-way opinion on deja vu. Some argue that this is a sign of excessive fatigue of the brain, others - on the contrary, that this is the result of rest. A detailed study of the phenomenon engaged Sigmund Freud and his followers. According to the scientist, the sensation of "already occurring" arises in man as a result of the resurrection in the memory of subconscious fantasies. If to say in simpler words, deja vu can arise in those people who dreamed or fantasized about something, and after a while their fantasy became a reality.

Most often the feeling of deja vu arises at a certain age - from 16 to 18 years or from 35 to 40. A splash at a young age can be explained by the ability to over-dramatically and dramatically transfer certain events. The second peak is usually associated with a crisis of middle age and is often called nostalgia, a desire to return to the past. The effect of this kind can be called a deception of memory, since memories may not be real, but only an assumption, that is, it seems to the person that in the past everything was perfect and he misses those times.

Why does deja vu happen?

Scientists have managed for several centuries to figure out which parts of the brain are involved and give an explanation for deja vu. Note that each part of the brain is responsible for different memory options. In the frontal lining of information about the future, the temporal is responsible for the past, and the intermediate for the present. When all these components function normally, the sensation of the approaching event arises only in case a person worries about his future, build plans.

But in fact, there is no clear distinction - the past, the present and the future exist in the brain of every person unlimitedly, respectively, if a person is in the stage of experiencing, his brain forms a way out of the situation, based on past experience or fantasy. At this point, all areas of the brain work simultaneously. If there is too much between short-term and long-term memory of connections, the present can be perceived as a past, this is an explanation of why the deja vu effect occurs.