Déjà vu

Most of us have had that funny feeling that you have experienced something before, but can't quite place it.

Until now, scientists have been in the dark about the strange phenomenon known as déjà vu, meaning "already seen" in French, but new evidence suggests that not experiencing it could be a sign of health problems.

Researcher Akira O'Connor, from the University of St Andrews, UK, has been exploring the concept of deja vu, and believes it's a way of the brain checking that its memories are correct.

http://www.nzherald.co.nz/health/news/article.cfm?c_id=204&objectid=11696493&ref=rss

cf: https://www.newscientist.com/article/mg20127011.400-deja-vu-where-fact-meets-fantasy?full=true