Does anyone know the scientific explanation for a 'deja-vu'?

Question

I have a lot of deja-vus - what's going on in my brain?

Answer 1

some of your synapses are firing a microsecond before others and thus you see the thing twice in your brain and this causes you to think you have seen or experienced this thing before.

This is normal unless it is happening like 3 or more times a day.
If so get checked by a neuroligist.

Answer 2

The term déjà vu 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. Say, for example, you are traveling to England for the first time. You are touring a cathedral, and suddenly it seems as if you have been in that very spot before. Or maybe you are having dinner with a group of friends, discussing some current political topic, and you have the feeling that you've already experienced this very thing -- same friends, same dinner, same topic.
The phenomenon is rather complex, and there are many different theories as to why déjà vu happens. Swiss scholar Arthur Funkhouser suggests that there are several "déjà experiences" and asserts that in order to better study the phenomenon, the nuances between the experiences need to be noted. In the examples mentioned above, Funkhouser would describe the first incidence as déjà visité ("already visited") and the second as déjà vecu ("already experienced or lived through").

As much as 70 percent of the population reports having experienced some form of déjà vu. A higher number of incidents occurs in people 15 to 25 years old than in any other age group.

Déjà vu has been firmly associated with temporal-lobe epilepsy. Reportedly, déjà vu can occur just prior to a temporal-lobe epileptic attack. People suffering an epileptic seizure of this kind can experience déjà vu during the actual seizure activity or in the moments between convulsions.

Since déjà vu occurs in individuals with and without a medical condition, there is much speculation as to how and why this phenomenon happens. Several psychoanalysts attribute déjà vu to simple fantasy or wish fulfillment, while 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. Obviously, there is more investigation to be done.

Related terms

Paramnesia - a disorder of memory: a) condition in which the proper meaning of words cannot be remembered; b) the illusion of remembering scenes and events when experienced for the first time -- called also déjà vu
Jamais vu - a disorder of memory characterized by the illusion that the familiar is being encountered for the first time

Answer 3

Science is still very limited in the sense that it demands that an event can be duplicated in an experiment and the result be the sameeach time. Thus paranormal activity is considered borderline and not legitimate science. "Its there and we cant explain it". Eventually your deja vus may get an explanation but for now, just accept it for what it is.
Many people have had those experiences every now and then and learned to ignore it after a few times/

Answer 4

I often get deja vu but i've never known why- good question! Sometimes, it can last for ages which really creeps me out. I hope you get some really good answers, but i dont think that there is an actually scientic answer.

Answer 5

Its funny you ask that as I was just thinkingthe same... Sorry too obvious.

I think its down to a lag in sensing and thinking about something and then storing it such that there is already a memory there, all be it a second or two old, when your brain comes to store what you have thought about.

Answer 6

Do you know what deja vu means? Maybe you are one of these people that can pick up on what other people are going to say or maybe what they are thinking???? Sign of a good brain. ie. Gotcha.

Answer 7

haven't you asked this already? some people do get this feeling, happened to me a few times, freaks you out when you know whats going to happen next. just try and go with it there is no scientific explanation to go with it, i think it is more of a spiritual thing.

Answer 8

Conscience verses subconscience with no time, all in the present time.

Answer 9

Hmmm.....I think I have heard this question before.