Newfound 'switchboard' helps brain form new memories without forgetting older ones

The brain may reuse some cells to store many different memories without mixing them up with or erasing older memories, a new study in mice suggests. Led by NYU Langone Health researchers, the study revealed that about 1 in 4 memory cells in a brain area called the hippocampus acts as a shared "hub" that links incoming and outgoing signals. A report on the findings was published in the journal Nature.