I have experienced the sensation. I make it stop by concentrating on what will happen next. The logic behind this is that if I have am having a premonition of the future, that is to say, I am remembering doing things that I have yet to do, I should be able to recall what will happen next. I suspect the sensation is caused by an over active hippocampus. Normally the hippocampus produces long-term memory during sleep. Déjà vu could be the process occurring while awake.