Abstract:The subiculum is a major output region of the hippocampus, receiving inputs from the CA1 region. We obtained paired patch-clamp recordings from synaptically coupled pairs of CA1 pyramidal cells (CA1PCs) and subicular principal cells (SubPCs), using rat hippocampal organotypic slice cultures. A single action potential in a presynaptic CA1PC evoked a unitary excitatory postsynaptic current in a SubPC (EPSCCA1→Sub). The failure rate of the monosynaptic transmission was remarkably low (0.08). Paired-pulse depressi… Show more
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