Question: Why is it that we think we have seen something again but we haven't?

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  1. You mean deja vu – the feeling that you have seen something before?

    You mean deja vu – the feeling that you have seen something before?

    Ahhahahaha.

    Seriously – I don’t know. I think that it is just a little bit of a crossed wire in the brain. Some things we experience remind us of something else. At that split second we don’t recall what the other thing was, but subconsciously we know what’s about to happen. We usually get deja vu in fairly common situations, like walking into a house or down the street. If we do something unusual like jumping out of a plane, or setting fire to a chair, we don’t tend to get that feeling because we haven’t done anything like that before.

    So I think it’s a half-memory of something we’ve done before or thought about. The new experience fires a similar pattern of neurons and our brain makes a connection because it likes to spot patterns. Our brain does a lot of things without us realising.

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  2. I think you are referring to deja vu. It’s the feeling that you have seen, done or heard something before almost exactly as it’s happening now, but you can’t really remember the first time and you may have imagined it.

    It is most common in people 15-25 years old, and in some disorders such as epilepsy. Some people believe that it is because of past-life experiences, but it is more likely due to a little glitch in the brain which confuses past and present experience.

    One explanation is that it’s due to a little error in memory. Things that you experience start out in short-term memory and may get transferred into long-term memory afterward. Deja vu may send a new experience straight into long-term memory, so that when it comes into your short-term memory, you feel as though it’s happened before and you ‘remember’ it. This explanation seems sensible because most people have trouble recalling the circumstances of the original ‘memory’, and just insist that it seems so familiar.

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