Tuesday, February 25, 2014

Blog Post No. 3 Science speaks for Deja vu

            Do you think that experiencing Deja Vu is an abnormality? Or a disease? Have you ever had this conscious feeling that you might be the only one experiencing such things? 

            We all know that Deja vu is a feeling wherein we picture out something from the past. Or something that has happened in our dreams. But there were studies I've researched that Deja vu has something to do with what's happening inside our brains. Here, I will be presenting some studies conducted by some scientists.

             According to the article "Explaining Deja vu" by Michael D. Lemonick, a team of neuroscientists at MIT's Picower Institute for Learning and Memory has solved the mystery behind Deja vu. Thomas McHugh, one of the researcher have uncovered a specific memory circuit in the brains of mice that probably cause the weird sensation which probably turns out to be a sort of memory-based analogue of optical illusion. They've also realized that memory is made up of different components which are the long and short term, memories of events and fact based that takes place in different parts of the brain.

             Another researcher, McHugh who tried to untangle the neurological circuity of the hippocampus, a part of the brain where new memories are formed. Where they believe that it is actually the groups of brain cells linked by strong chemical connections that causes to have memories. Also, it is said that scientists are convinced in a mechanism they call pattern completion. Wherein a new experience that's merely similar to an older one seems identical.

            Lemonick says, "Despite of those phenomenon's universal study, no one has still offered a convincing explanation for why it happens." I somehow agree with Lemonick because until now there's still no definite reason why Deja vu is happening. There are lots of scientists who study about this but still, they found no specific answer in our  questions.

           Another article that I've read is "Deja vu and Epilepsy" by Marc Lallanilla. It is said here that Deja vu probably comes from studies of epilepsy. The strong and consistent link between Deja vu and the seizures occur in people with medial temporal lobe epilepsy, a type of epilepsy that affects the brain's hippocampus. Also, he said that Deja vu is like an epileptic seizure, may be the result of a neural misfiring when the tneurons in brain transmits signals which causes people to experience a false sense of remembered familiarity.

               Lallanilla said, "Recent research, however, has yielded some clues into what causes Deja vu." This is probably true because the article was able to come up with some studies that could satisfy the readers. They were able to come up with realiable studies.

               With what I have researched, I can say that experiencing Deja vu is way too far from abnormality. It is also not considered as a disease. It definitely has something to do with what's happening inside our brains. Again, it's all in the mind.


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