Usagevpn.com – Memories are rarely fixed snapshots. A familiar street can change over months as an old building is renovated: people may remember how it looked before construction began, the disruption of the work itself and the completed structure that eventually replaces it. These are closely related experiences, yet the brain usually keeps them distinct enough to make sense of the sequence.

Researchers at the Institute of Neurosciences, a public centre operated by the Spanish National Research Council (CSIC) and Miguel Hernández University, have explored how the brain manages that balancing act. Their study, published in PLOS Biology, points to a mechanism in the hippocampus that can help the brain add fresh information to an existing memory while preventing excessive overlap between old and new experiences.…