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Objective_Regret4763 t1_ix6i4k7 wrote

Reply to comment by chazwomaq in What 'connections' is the brain actually building when you learn something? by PepsiMangoMmm

Where does myelination fit in here?

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chazwomaq t1_ixc8g16 wrote

Myelination in human continues up to around 20 years. It improves the speed and efficiency of neurons. Not sure if it is implicated in memory formation, although conditions like multiple sclerosis (loss of myelination) can involve memory loss. Note that myelination is not to do with connections between neurons.

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LPSTim t1_ixiwloj wrote

With MS, memory loss is typically more associated with the loss of brain matter (atrophy), rather than demyelination.

If demyelination occurs alone, the memory is typically preserved, it just takes longer to recall. The main component of cognition affected here is processing speed.

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