It is a french word which means already seen. Sometimes we feel that we have already experienced this moment of life or this thing has already happened sometime in the life exactly the same way. There are many different types of deja vu but keeping this article short it is a sensation of repeatation of a moment.!!
According to experts like [Dr Akira O’Connor]), senior psychology lecturer at the University of St Andrews, déjà vu – the French for ‘already seen’ – is not only a feeling of familiarity, but also the metacognitive recognition that these feelings are misplaced.
“Déjà vu is basically a conflict between the sensation of familiarity and the awareness that the familiarity is incorrect. And it’s the awareness that you’re being tricked that makes déjà vu so unique compared to other memory events,” he explains.
According to experts it is not anything related to any unhealthy brain or memory issue but it is very difficult to study because deja vu can occur anytime and anywhere.
But there are many theories which try to explain this phenomenon and a few of them are:
It can be a physical itch, the mental itch of déjà vu likely has many causes, experts say.
It can be that déjà vu occurs as our brains’ frontal regions evaluate our memories and flag an error.
Another explanation for déjà vu, with some experimental findings to back it up, is that our stored memories still influence our present perception even if we can’t consciously recall them.
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