How does the brain store memories?

🧠 In the brain, the hippocampus region, crucial for learning and memory, records each event in three different forms or “copies”.

These ‘”copies” are disseminated among different groups of neurons that arise at various stages during embryonic development.

1️⃣ The early-born neurons ensure the longevity of a memory creating a copy that, although initially weak, strengthens over time. This memory becomes more accessible to the brain long after its formation, allowing the preservation of memories in the long term.

2️⃣ The late-born neurons produce a memory copy that is very strong initially but fades quickly. This memory is easier to modify shortly after formation, allowing new information to be integrated or errors corrected.

3️⃣ The last group of neurons present an interesting compromise – a memory copy that remains stable over time.

These 3️⃣ memory copies function together, enhance the brain’s memory dynamics and reinforce its plasticity.

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