Vesicle Pools of Memory at Mossy Fiber Synapses

In this issue of Neuron, Vandael et al. (2020) reveal that post-tetanic potentiation at dentate gyrus mossy fiber synapses is induced by natural activity patterns. This plasticity is mediated by an increase in readily releasable vesicle pool size and is extended in the absence of activity, forming a “pool engram.”

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