How mouse brains reorganise old memories when new ones are laid down

Oxford and Imperial researchers have mapped how the structure of existing memories is reorganised as new experiences are committed to memory in mice.

They found that brain architecture is sophisticated enough to integrate new information while allowing new and old memories to interact, rather than having to forget old experiences to make room for new ones.

In a study published in Nature Neuroscience, the team from the University of Oxford and Imperial College London devised an experiment using graph theory – mathematical structures that model relationships between objects – to study how mice integrate memories.

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