I know this, too. There are Deja-vu and Jamais-vu.
But, the scientific explanation is nonsense in my opinion. They don't have actually an empirical base to state such a connection between some simply physical observations and a complex mental event like a deja-vu or jamais-vu.

I don't think that it is something supernatural, but the scientific explanation makes no sense IMO.

I had jamais-vus (never seen) several times where I remembered that I already seen a scene in one of my dreams, and I remembered that I dreamed it. And, I had dreams where I had the strong feeling that this will certainly happen, and it happened a long time later, when didn't expect it. Those are too complex mental processes to explain them with a simple hick up of the brain.