Why Does Déjà Vu Feel Like a Glitch in Reality?

You've just walked into a room you've never seen before. So why does it feel like you've already lived this exact moment? Déjà vu can make an ordinary second feel like reality has repeated itself. In this Doodlewise explainer, we explore why a brand-new place can feel strangely familiar, what experiments with virtual environments reveal about memory, why the feeling can seem like a prediction of the future, and how familiarity can clash with what you know is actually happening. The science is fascinating, but there isn't one universally established explanation for every episode of déjà vu. We'll look at what researchers have found, what the evidence does and doesn't show, and why this strange feeling can be so convincing. Occasional, brief déjà vu is common. If episodes become unusually frequent or prolonged, or happen alongside confusion or loss of awareness, consider seeking medical advice. What does déjà vu feel like to you: a memory glitch, a strange coincidence, or something else? Tell us in the comments. RESEARCH & SOURCES Cleary, A. M., Brown, A. S., Sawyer, B. D., Nomi, J. S., Ajoku, A., & Ryals, J. (2012). “Familiarity from the configuration of objects in 3-dimensional space and its relation to déjà vu: a virtual reality investigation.” Consciousness and Cognition, 21(2), 969–975. https://pubmed.ncbi.nlm.nih.gov/22322... Cleary, A. M., & Claxton, A. B. (2018). “Déjà Vu: An Illusion of Prediction.” Psychological Science, 29(4), 635–644. https://pubmed.ncbi.nlm.nih.gov/29494... Aitken, C. B. A., Jentzsch, I., & O’Connor, A. R. (2023). “Towards a conflict account of déjà vu: The role of memory errors and memory expectation conflict in the experience of déjà vu.” Neuroscience & Biobehavioral Reviews, 155, 105467. https://pubmed.ncbi.nlm.nih.gov/37979... Cleveland Clinic. “Déjà Vu: What It Is and Why It Happens.” https://health.clevelandclinic.org/de... Hadzic, A., & Andersson, S. (2024). “Non-ictal, interictal and ictal déjà vu: a systematic review and meta-analysis.” Frontiers in Neurology. https://pubmed.ncbi.nlm.nih.gov/38966... #Doodlewise #DejaVu #Psychology