SMRTR Science & EngineeringJul 28, 2025Live Science

Memories aren't static in the brain — they 'drift' over time

SMRTR summary

A new study in mice challenges long-held beliefs about memory storage in the brain. Researchers found that memories of places "drift" across neurons over time, with only 5-10% of cells consistently representing a location. This drift may help the brain separate similar experiences and track time passage. The findings could have implications for understanding age-related memory decline and potential ways to maintain memory function.

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