Introduction

A woman sees an altered reflection in a mirror, symbolizing déjà vu.

Source: Deep AI

Déjà Vu describes the weird sensation-the creepy feeling that you have experienced a situation before, even when you logically know you haven’t. It is a French term meaning “already seen

However, it is very common and experienced more among young adults. Experts have not been able to identify a single cause yet. 

It is important to understand this phenomenon, so that we can gain insights into memory and brain function, identify connections to neurological conditions, understand cognitive errors to check how the brain can misinterpret information, enhance AI and virtual reality and explore questions about reality and time.

The Science Behind Déjà Vu

Déjà Vu happens when our brain experiences a small glitch in processing memories. From a neurological perspective, temporal lobe are key as they are responsible for memory and recognition. When these areas misfire or process information at different times, we might get the feeling that we’ve experienced something before.

One more theory called Hologram Theory suggests that memories are stored like a hologram with layers of interconnected details. When any experience partially matches these stored layers, it can create a false sense of familiarity. This overlap triggers the feeling of déjà vu even though the event is something new.

Research has also highlighted the connection between neurotransmitters (dopamine) and Déjà Vu. Dopamine is a chemical in the brain that helps send signals between nerve cells and helps the brain recognize familiar situations. Some drugs that affect dopamine levels can make people feel it more often they change how the brain processes these signals.

A glowing digital illustration of a brain inside a human head, symbolizing the neurological basis of déjà vu.

Source: Deep AI

Psychological Perspectives

Scientists have tried to link déjà vu to medical conditions like epilepsy and psychological issues like schizophrenia, but research has been slow. This is partly because déjà vu is often associated with mysterious and unscientific ideas like reincarnation and intuition. 

Another reason is that it is rare and usually happens once or twice a year, especially in young adults. It can also happen before a seizure in some people with temporal lobe epilepsy (brain condition). However, apart from specific brain issues like tumours or seizures, it hasn’t been clearly linked to any physical or psychological problems.

Is Déjà Vu Normal or Is it a Disease?

Yes, It is normal.

Common Triggers and Experiences

There are many common triggers vu such as-

  1. A scene or place
  2. Coincidence
  3. Holding liberal beliefs 
  4. A conversation or remembering your dreams
  5. Temporal lobe epilepsy
  6. Traveling a lot
  7. Having a high level of education
  8. Psychiatric conditions-schizophrenia

How does Déjà Vu feel?

Aanya was walking through the bustling market, the vibrant colors and lively sounds surrounding her. As she turned a corner, she suddenly felt a strange sense of familiarity. The vendor selling fresh flowers, the aroma of spices in the air and the distant sound of a street musician playing a familiar tune-it all felt like she had experienced this exact moment before. She paused for a moment, trying to recall if she had ever been there, but she knew she hadn’t.

Conclusion

Déjà Vu is a fascinating phenomenon that offers valuable insights into the workings of our memory and brain function. While it remains a mysterious experience, understanding its neurological and psychological aspects can help us appreciate the complexity of cognitive processes. It is a normal occurrence and not a sign of any pathology. By studying this weird sensation, we can continue to explore the depths of human consciousness and intricate ways our minds interpret reality.

References

  1. https://www.healthline.com/health/mental-health/what-causes-deja-vu
  2. https://www.sciencedirect.com/science/article/abs/pii/S0079742110530020

Leave a Comment