Why does it feel like déjà vu?

This situation is called déjà vu.

Déjà vu, also known as "déjà vu", is derived from the French "Déjà vu" and can also be translated as "hallucination memory", which refers to things or scenes that have not been experienced before as if they were at a certain time. The feeling of déjà vu experienced in a certain place is also called the hippocampus effect.

The sense of déjà vu is a real thing that has a scientific explanation. It is not a supernatural event. It is just that similar scenes have appeared in the brain's imagination. In other words, the sense of déjà vu comes from the brain’s association, which associates this picture.

Experiments have shown that Déjà vu easily appears when people feel tired, stressed, sick, or when they are surrounded by unfamiliar things. This may be because the brain cannot handle it at this time. The information received is processed well.

Interestingly, in such a situation, the opposite of "déjà vu" may also appear, jamais vu (seemingly unfamiliar), which refers to the fact that you clearly see familiar people or things, but But I can't remember the relevant details; or I see very familiar words but can't recognize them, or the words are on my lips but I can't say them out.

Compared with the elderly, young people are more likely to experience "hallucinatory memories"; this may be because young people have richer lives and often have new things around them; young people also live busier lives and are easily tired. , so there are more moments of "knotting" in the brain. The frequency of Déjà vu peaks in early adulthood and slowly decreases after age 25 and into old age.

Extended information:

Three specific phenomena of déjà vu that often appear in reality:

1. A certain scene seems to have been experienced at some time.

For example, the people and things that appear at this moment may have really happened before, or even happened a long time ago, or maybe they were just on TV or in a movie. We saw a certain scene, or maybe it was a scene we imagined out of thin air a long time ago... But when we are immersed in it, we suddenly feel that what is happening at this moment is so familiar.

2. I feel like I have had it before.

This phenomenon generally occurs when extreme emotions occur, especially when they are close to losing control. It is mostly reflected in inner feelings, because a series of emotional fluctuations caused by something, a certain person or a certain sentence will suddenly make you feel that the feelings welling up in your heart are so real.

Generally, when the mood swings reach the point where it is difficult to control, you will not notice it. The feeling will only come out when and only when the mood swings to the extreme but you are trying to control it, approaching the critical point of explosion.

3. It seems that I have been to a certain place at some time. This usually happens in a strange place, that is, the person involved comes to a place he has never been to before.

Reference: Baidu Encyclopedia-Déjà vu