[Vendetta21]

http://en.wikipedia.org/wiki/Deja_vu

http://www.psychologytoday.com/blog/...what-is-d-j-vu

http://www.sciencedaily.com/releases...1118122146.htm

Recognition memory is the type of memory that allows us to realize that what we are currently experiencing has already been experienced before, such as when we recognize a friend on the street or hear a familiar song on the radio. The brain fluctuates between two different types of recognition memory: recollection and familiarity. Recollection-based recognition occurs when we can pinpoint an instance when a current situation has previously occurred.

For example, seeing a familiar man at a store and realizing that we’ve seen him before on the bus. On the other hand, familiarity-based recognition occurs when our current situation feels familiar, but we don’t remember when it has happened before. For example, we see that familiar man in the store, but we just can’t remember where we know him from. Déjà vu is believed to be an example of familiarity-based recognition—during déjà vu, we are convinced that we recognize the situation, but we are not sure why.

Every time I experience Deja Vu it seems to change (prime) my mood so I kinda wonder if the specific thing that happens that we label Deja Vu is incredibly common but what makes Deja Vu special is it's the almost-remembering of a situation where we previously had some thought that felt profound/strange/weird to us for whatever reason. Kinda like trying to remember a word that's on the tip of your tongue but instead your trying to remember a feeling that's on the fringe of your viscera.