What exactly is DejaVu, like I know what it is and I’ve had it but what does it stem from? Is it neurological based off of past memories, it’s so strange to me.
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I don’t think we exactly know. But we suspect that our experience, even in each second, comes from our memory. With déjà vu, the brain sends a signal that the experience is coming from long-term memory instead of short/immediate term. So even though it’s happening now, we perceive it as something that happened in the past. 
From the article i linked below-
“The feeling may arise when that recognize familiar situations get activated inappropriately, says Akira Robert O’Connor, a cognitive psychologist at the University of St. Andrews in Scotland, who researches déjà vu. When this happens, another region of the brain then checks this feeling of familiarity against your recall of past experiences. When no actual matches are found, the result is a discomfiting sense of having seen it all before, accompanied by the knowledge that you haven’t.”
https://www.scientificamerican.com/article/what-causes-the-feeling-of-deja-vu/
Deja Vu is a feeling, that’s sort of the key to remember; every feeling you have is the product of your brain. Deja Vu is the brain generating a feeling of familiarity that’s interpreted as living through a moment before, but it’s just that, a feeling. There is no single accepted answer as to what exactly is going on, but it has been [reproduced in a lab](https://www.scientificamerican.com/article/can-science-explain-deja-vu/) more than once.
Deja Vu is a feeling, that’s sort of the key to remember; every feeling you have is the product of your brain. Deja Vu is the brain generating a feeling of familiarity that’s interpreted as living through a moment before, but it’s just that, a feeling. There is no single accepted answer as to what exactly is going on, but it has been [reproduced in a lab](https://www.scientificamerican.com/article/can-science-explain-deja-vu/) more than once.
I don’t think we exactly know. But we suspect that our experience, even in each second, comes from our memory. With déjà vu, the brain sends a signal that the experience is coming from long-term memory instead of short/immediate term. So even though it’s happening now, we perceive it as something that happened in the past. 
Deja Vu is a feeling, that’s sort of the key to remember; every feeling you have is the product of your brain. Deja Vu is the brain generating a feeling of familiarity that’s interpreted as living through a moment before, but it’s just that, a feeling. There is no single accepted answer as to what exactly is going on, but it has been [reproduced in a lab](https://www.scientificamerican.com/article/can-science-explain-deja-vu/) more than once.
I don’t think we exactly know. But we suspect that our experience, even in each second, comes from our memory. With déjà vu, the brain sends a signal that the experience is coming from long-term memory instead of short/immediate term. So even though it’s happening now, we perceive it as something that happened in the past. 
From the article i linked below-
“The feeling may arise when that recognize familiar situations get activated inappropriately, says Akira Robert O’Connor, a cognitive psychologist at the University of St. Andrews in Scotland, who researches déjà vu. When this happens, another region of the brain then checks this feeling of familiarity against your recall of past experiences. When no actual matches are found, the result is a discomfiting sense of having seen it all before, accompanied by the knowledge that you haven’t.”
https://www.scientificamerican.com/article/what-causes-the-feeling-of-deja-vu/
From the article i linked below-
“The feeling may arise when that recognize familiar situations get activated inappropriately, says Akira Robert O’Connor, a cognitive psychologist at the University of St. Andrews in Scotland, who researches déjà vu. When this happens, another region of the brain then checks this feeling of familiarity against your recall of past experiences. When no actual matches are found, the result is a discomfiting sense of having seen it all before, accompanied by the knowledge that you haven’t.”
https://www.scientificamerican.com/article/what-causes-the-feeling-of-deja-vu/
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