> How does 3 regions of the brain translate to 3 copies of the same memory? The actual paper goes into more detail: https://www.science.org/doi/10.1126/science

> How does 3 regions of the brain translate to 3 copies of the same memory? The actual paper goes into more detail: https://www.science.org/doi/10.1126/science.adk0997 https://www.science.org/doi/10.1126/science.adk0997 Here's a blurb from the paper that partially answers your question: > Late-born neurons were preferentially recruited for retrieval at short latency after acquisition, whereas early-born neurons were preferentially recruited at later times. These divergent trajectories recapitulated reactivation dynamics recorded through longitudinal calcium imaging experiments, which further revealed distinct network-wide responses between subpopulations.