What is déjà vu? The term is French and means, literally, “already seen”. Those who have experienced the feeling describe it as an overwhelming sense of familiarity with something that shouldn’t be familiar at all.
The researchers found that this phenomenon most often occurs when new scenes were very similar to previously experienced scenes. However, just in terms of their spatial layout, but not similar enough that people consciously recognized the resemblance.
There are many theories about the origins of déjà vu, none of which are mutually exclusive.
This phenomenon occurs in individuals with and without a medical condition. Therefore, there is much speculation as to how and why this phenomenon happens. Several psychoanalysts attribute déjà vu to simple fantasy or wish fulfillment. On the other hand, some psychiatrists ascribe it to a mismatching in the brain that causes the brain to mistake the present for the past. Many parapsychologists believe it is related to a past-life experience.
Young people have déjà vu the most, and this may actually be a sign that young people are very good at spotting when their brains start telling them that things are more familiar than they ought to. Also, people who travel frequently experience it more than those who don’t travel at all.
No matter what, déjà vu is an interesting and unusual experience that needs more of our attention and more researches to be done.