Have I Been Here Before?

The science behind memory and déjà vu

Mark Humphries

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Photo: Pixabay

How does your brain tell the difference between somewhere you have been and somewhere you haven’t? As we wander around our world, we encounter many familiar places along familiar routes — houses and shops, bars and cafes. If we wander off somewhere new, we instinctively, instantly, know it is new. And we form new memories: These new places become familiar.

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Mark Humphries

Theorist & neuroscientist. Writing at the intersection of neurons, data science, and AI. Author of “The Spike: An Epic Journey Through the Brain in 2.1 Seconds”