Déjà vu

Have you ever walked into a store that you have never been in before and thought i know i have been here before?? That eerie feeling that you have done that exact thing before even though you know you haven't?

Well than you are part of the approximately 70% of the population that has experienced Deja Vu. A higher number of incidents occurs in people 15 to 25 years old than in any other age group.

It's such a weird experience and i thought that would be an interesting thing to find out about!

Well there are quite a few theories on what exactly Deja Vu is and why it happens.

1. reincarnation:
Some people believe that you have actually been there in another life! i don't understand how that exactly would work for say a conversation. When you feel like you have actually been in that conversation before. So FAIL!

2. Psychic:
Some people think that this is just the proof of people being psychic. Well i don't think that 70% of the population is psychic if that was true. And there is just not very much support for this theory at all.

3. Temporal Lobe epilepsy:
Reportedly, deja vu can occur just prior to a temporal-lobe seizure. Now this sounds a little more like it would fit but again 70% of the population does not have temporal lobe seizures. There would be many other factors and problems that would occur in your body if that was the case! However i do think that if you do have temporal lobe seizures this could be a warning sign or a symptom.

4. Eye delay:
This is also closer to believable but not quite fully believable. Basically it is when one eye sees it and the other eye has a delayed response sending it to the brain. Well then what happens to all the other senses? typically deja vu can use all of your senses from the taste to the smell and feel of things.

The most likely reason:
5. Brain Delay:
This theory is much like the eye delay theory except it would involve all of your senses. The temporal lobe of the brain's left hemisphere is responsible for sorting information as it comes in. This temporal lobe actually receives this incoming information twice with a slight (milliseconds-long) delay between transmissions (once directly and once again after its detour through the right hemisphere of the brain.) If that second transmission is delayed slightly longer, the brain might put the wrong timestamp on that bit of information and register it as a previous memory because it had already been processed. Basically your left brain sends it to your right brain and then sends it back to the left. while in the right side it tells you whether it's a memory or familiar. So like do i like the taste of this or not. If there is a delay in any part of this process (which is a very quick process) then you might have the feeling that you have deja vu



In all it would mean that your brain is slow.






http://science.howstuffworks.com/deja-vu.htm