Each of us has at least once experienced a feeling of deja vu - a strange feeling as if all this has happened to us before. Believe it or not, research into the phenomenon still hasn't progressed beyond theory and guesswork.
So what did we not know about the feeling of deja vu?
The term "deja vu" is translated from French as "already seen".
In some cases, people reported that the experience of déjà vu reminded them of a previous dream.
According to some psychological studies, boring environment, illness, or stress can trigger the onset of deja vu.
Sigmund Freud believed that this phenomenon is associated with the plots of forgotten dreams.
After 25 years, there is a decrease in the likelihood of deja vu.
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Researchers believe the phenomenon may be directly related to dopamine levels. This is why young people experience it more often.
Summarizing the experience of many years of research, it was possible to find out that during electrical stimulation of the temporal lobe of the brain, patients experienced a feeling of unreality of what was happening, as well as deja vu.
Perhaps this strange sensation is caused by a malfunction in the brain trying to re-store the same memories.
There is a theory that deja vu is an experience gained in a parallel universe.
According to another theory, deja vu is a kind of subconscious sixth sense.
Travelers experience deja vu more often than couch potatoes. Most likely, this happens because they come across more memorable and remarkable places on the way.
The likelihood of experiencing déjà vu is related to socioeconomic status and educational attainment. Better educated and high-ranking citizens experience déjà vu more often than the poor.
There is a phenomenon opposite to deja vu. It is called "jame vu". People experience it when they find themselves in a familiar environment and perceive it as completely unfamiliar.
According to parapsychologists, deja vu is the memory of our past lives.
It is believed that “divided perception” is capable of provoking deja vu. This happens if you first glance at an object, and then pay full attention to it.
Cognitive psychologists at the University of the American State of Colorado have tried to investigate the phenomenon using virtual reality. They created a computer model of two identical rooms, and when entering the second, the volunteers experienced the sensation of deja vu.
There is a version that deja vu is an instant failure of the surrounding reality.
Some researchers seriously argue that deja vu is a kind of "prophetic dream" that allows us to look into the future for a moment.
Evgeniya Yakovleva