How Your Brain Chooses What To Remember
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During the day, your brain is simply too busy to encode memories without interfering with normal processing. At night, however…
The filing system
The brain decides which memories to keep based on significance, using sharp brain wave ripples as an internal bookmarking system. Everyday memories fade, while important events are tagged in this manner for consolidation during sleep.
How does it do this? It starts in the hippocampus, which records experiences during wakefulness and replays them repeatedly at high speed during sleep, preparing them for transfer to the neocortex.
How do we know? Uniform Manifold Approximation & Projection (UMAP) for dimension reduction is a tool that condenses 400-dimensional neural activity data into 3D for visualization. Mice navigating a maze showed hippocampal activity encoding location and learning progression; it also showed neural patterns reflecting maze layout and task mastery.
What this means in practical terms: you need to get good sleep if you don’t want to lose your memories!
For more on all of this, enjoy:
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Want to learn more?
You might also like to read:
How To Boost Your Memory Immediately (Without Supplements)
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