Déja vu is a French term that means "already seen" and refers to the experience of feeling sure that one has witnessed or experienced a new situation previously, even though they cannot fully remember it. It creates an overwhelming sense of familiarity with something unfamiliar. Most people experience déja vu now and then when in a place with unfamiliar objects arranged similarly to a past experience, creating a feeling of knowing. Research suggests déja vu occurs when the memory system incorrectly flags a new situation as familiar.
2. What is this?Term deja vu is a French word and means, literally, "already seen, including déjavécu, already experienced;déjasenti, already thought; and déjavisité, already visitedIt is the experience of feeling sure that one has witnessed or experienced a new situation previouslyAlbeit the exact circumstances of the previous encounter are uncertain
4. Experienced persons describe it as an overwhelming sense of familiarity with something that shouldn't be familiar at allIts like you are having dinner with a group of friends, discussing some current political topic, having the feeling that you've already experienced this very thing -- same friends, same dinner, same topic
5. VoxpopuliPeople say déja vu involves emotional responses to similar eventSwiss scholar Arthur Funkhouser suggests that there are several "deja experiences", thus the nuances between the experiences need to be noted for each one of themSeveral psychoanalysts attribute deja vu to simple fantasy or wish fulfillment
6. Déja vu hits most of us now and thenWe're struck by the sensation that we have experienced an event before, even though we can't fully remember it or perhaps know it didn't really happenIf you are in a place that has some unfamiliar objects, but they are set up similarly to a situation you have experienced before, you will get a feeling of knowing
7. The experience of déja vu is just an extreme reaction of the system that your memory uses to tell you that you are in a familiar situationStudies are ongoing about this subject and researchers are still trying to know this phenomenon by neurology