Eric, I think the "deja vu" has already a scientific explanation (or a theory anyway). Something to do with an area of you brain (short term memory) which would have sometimes a micro-second delay in treating the information and transferring it to another area (long-term memory), which would translate for your brain as "I already saw that", while in fact it's the same information you have the feeling th have already processed (because of that small delay). Something like that.

Problems to exactly test that is that even though almost everyone claims to have felt it at least once, it's impossible to recreate in a controlled environment (lab), because it seems to happen randomly.

Extract from...

Eric, I think the "deja vu" has already a scientific explanation (or a theory anyway). Something to do with an area of you brain (short term memory) which would have sometimes a micro-second delay in treating the information and transferring it to another area (long-term memory), which would translate for your brain as "I already saw that", while in fact it's the same information you have the feeling th have already processed (because of that small delay). Something like that.

Problems to exactly test that is that even though almost everyone claims to have felt it at least once, it's impossible to recreate in a controlled environment (lab), because it seems to happen randomly.

Extract from Wikipedia:

In recent years, déjà vu has been subjected to serious psychological and neurophysiological research. The most likely candidate for explanation, according to scientists in these fields, is that déjà vu is not an act of "precognition" or "prophecy" but is actually an anomaly of memory; it is the impression that an experience is "being recalled" which is false. This is substantiated to an extent by the fact that in most cases the sense of "recollection" at the time is strong, but any circumstances of the "previous" experience (when, where and how the earlier experience occurred) are quite uncertain. Likewise, as time passes, subjects can exhibit a strong recollection of having the "unsettling" experience of déjà vu itself, but little to no recollection of the specifics of the event(s) or circumstances they were "remembering" when they had the déjà vu experience, and in particular, this may result from an overlap between the neurological systems responsible for short-term memory (events which are perceived as being in the present) and those responsible for long-term memory (events which are perceived as being in the past).