More people report their first déjà vu experiences as having happened sometime before they were 10 years old. A very small number of people say they had their first déjà vu experience by the age of 6. Having said this, depending on how old you are, you may still have to wait a while until you have your first déjà vu experience. Young people experience déjà vu the most. Typically, this means that déjà vu is not very common so if you have experienced it recently you are very lucky! Who Experiences Déjà vu the Most and What Does This Tell Us? Again, the answers they give depend on who they are and how we ask them the question, but most people report déjà vu somewhere between every few weeks and every few months. We can also get an idea of how often déjà vu happens by asking people.

Asking the question in different ways can get very different results. Second, people can give very different answers depending on the definition we give of déjà vu. This is a problem because surveys can give us quite different results depending on who we ask. First, we cannot ask everyone in the world so we have to use the results of surveys of small groups of people.

We are not sure about the exact percentage for two important reasons. The percentage of people who experience déjà vu is probably somewhere between 30% (about 8 in a class of 30) and 100% (everyone in a class of 30). You will then read about how researchers have investigated déjà vu and what they think might cause it. In this review, you will read about how often we experience déjà vu. Then, the feeling fades away and you wonder what just happened. You know that although you have seen horses before they should not make you feel as strongly familiar with them as these horses do. In this picture, you see horses and they suddenly feel too familiar. You often notice this kind of over familiarity because the feeling happens very quickly and then also quickly fades to a normal level of familiarity. When something feels too familiar, whether it is a thing you recognize or not, and the familiarity feels wrong, you are probably having a déjà vu experience. Although it is a coincidence that you have seen two such similar things, the feeling of familiarity is appropriate so the sensation you feel is not déjà vu. In this picture, you can see a man riding a horse who looks a bit like the monkey riding the goat that you just watched online. This feeling is entirely appropriate and is not déjà vu. When this happens and our memories are working well, we may feel a sense of familiarity. Sometimes we see and experience things that we recognize or that look like other things we have already seen. In this picture, you are watching a video of a monkey riding a goat for the first time so it feels like a funny, new thing. Our memories typically work very well and we can usually trust the feelings of memory we experience. We all go through our lives seeing and experiencing things that we may remember later on.

Figure 1 - What is and what is not a déjà vu experience?.

They are unusual but cool experiences that can actually tell us a lot about how our minds, particularly our memories, work. Déjà vu experiences are often described in movies and books, because they can make people feel like they have somehow seen into the future. Of course, you have been in the situation before – you have walked to school many times – but the feeling is so strong and so connected to right now, that you know it should not feel as overwhelming as it does (see Figure 1 for more explanation of what déjà vu is). For example, you might be walking to school when you suddenly feel like you have been in exactly this situation before. In this article, we review recent research on déjà vu including what it is, how common it is, and why scientists think it happens.ĭéjà vu, pronounced day-zhaa voo, is French for “already seen.” It describes the fascinating and strange experience where you feel that something is very familiar but you also know that this feeling of familiarity should not be as strong as it is. Many of us report our first experiences between the ages of 6 and 10. Déjà vu describes the strange experience of a situation feeling much more familiar than it should.

Whats deja vu