#BrainFactMonday – What is déjà vu? Have You Really Lived That Experience Before?
Posted on 18th September 2023
Déjà Vu (from French: "already seen") 👉 Sometimes the sensation that we've already been in that situation, already seen it, already felt it, it is SO strong that we really start believing it we lived it already, maybe in a past life...
Sorry to break the enchantment but.... nope. 💫
It doesn't mean we've already experienced it...
It's rather a "𝗵𝗶𝗰𝗰𝘂𝗽" of the brain that messes up the sequence of events happening in that specific moment, making you feel that you've already lived it (a much more romantic view I admit! but unrealistic). 🤷
So what happens in the brain when we experience a déjà Vu?
💡Researchers believe that déjà vu results from a brief 𝗺𝗶𝘅-𝘂𝗽 𝗶𝗻 𝗼𝘂𝗿 𝗯𝗿𝗮𝗶𝗻'𝘀 𝗺𝗲𝗺𝗼𝗿𝘆 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗲𝘀. When we encounter a new experience, the brain tries to make sense of it by comparing it with similar memories stored in different areas, and sometimes, it associates the current experience with an incorrect memory, leading to the feeling of déjà vu.
💡 Another theory suggests that déjà vu might be linked to our brain's navigation system. This system helps us form a mental map as we move through spaces and places. Déjà vu could occur when this 𝗺𝗮𝗽𝗽𝗶𝗻𝗴 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗺𝗼𝗺𝗲𝗻𝘁𝗮𝗿𝗶𝗹𝘆 𝘀𝘁𝘂𝗺𝗯𝗹𝗲𝘀, causing us to feel like we've been in the same spot before.
So.... for as enchanting as feels, the idea that we have already lived a specific moment or met a specific person already in a past life, isn't true. 🙃
Next time you experience déjà vu, remember that it's just your brain playing a little trick on you! 😄