A group of researchers from the University of Western Ontario failed to disclose the true nature of deja vu. On the received information, reports popular science.
Deja vu is the feeling that now confront the state had already taken place in the past, says Wikipedia. Scientists have suggested that the human brain can create false memories and to recall them from memory. This often happens in dreams, when a person gets into an unfamiliar environment, but I'm sure it was more than once.
In the course of a linguistic experiment, scientists were able to partially confirm his theory. The volunteers were confused by the series of associations. As a result, in the memory with a false memory. Certain mechanisms allow these memories to call even after a relatively long time.
A survey of volunteers, proved that during deja vu special active in the prefrontal cortex of the brain. It is known that this site is responsible for the decision-making process.