Deja Whaaaat??

By: April Seiler

Deja Vu

Deja Vu is a term used originally by the French, in order to explain the event of a past experience repeating itself. It is a feeling of familiarity or having already lived through something. With this research scientists can get to the bottom of why people think this may happen to them, and depending the circumstances, may be able to recreate this feeling or even take it way.
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Mental Illnesses

Many researchers have linked Deja Vu to mental illnesses, such as anxiety, dissociative identity disorder, and schizophrenia. In reality the strongest pathological association with Deja Vu is temporal lobe epilepsy, which is a neurological condition characterized by recurrent epileptic seizures. Deja Vu is most likely a neurological anomaly caused by a failure of electrical discharge in the brain. Much like in the first state of sleep (NREM1) where many people have small epileptic episodes, called hypnogogic jerks; In the same neurological state many people experience a different kind of episode resulting in an erroneous sensation of memory. This is Deja Vu.

The Research of Deja Vu

In 1963, Robert Efron proposed that Deja Vu is caused by dual neurological processing caused by delayed signals. He found that the sorting of incoming signals in the brain is controlled by the temporal lobe of the brains left hemisphere. The signals enter the lobe twice before processing, normally with a delay of milliseconds between them. Efron Proposed that if the delay was not small enough then the result would be feeling the same sensation twice.


Some drugs have increased the chances of déjà vu in the user, along with some pharmaceutical drugs, when taken together. Taiminen and Jääskeläinen reported in 2001, the case of a healthy male who started experiencing recurrent sensations of déjà vu after taking the drugs amantadine and phenylpropanolamine together to get rid of some of his flu symptoms. He reported his treatment to the psychologists to make a case study. due to the action of the drugs and some previous findings from electrode stimulation of the brain, Taiminen and Jääskeläinen found that déjà vu is a result of hyperdopaminergic action in the mesial temporal areas of the brain.

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Other Theories

One theory of déjà vu is the feeling of having previously experienced something to having dreamt about a similar situation or place, and forgetting about it until being reminded of the situation or the place while awake.

Einstein theorized that time and space do not move in straight lines. Because of gravity, they are on a massive curve. It wraps around itself like a sphere, and if you go in what you perceive to be a 'straight line' you will in fact end up where you started. In this dimension, we are in fact going in circles, and that is recognized as Deja Vu.

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