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- W2896850724 abstract "Abstract Many brain functions depend on the ability of neural networks to temporally integrate transient inputs to produce sustained discharges. This can occur through cell-autonomous mechanisms in individual neurons and through reverberating activity in recurrently connected neural networks. We report a third mechanism involving temporal integration of neural activity by a network of astrocytes. Previously, we showed that some types of interneurons can generate long-lasting trains of action potentials (barrage firing) following repeated depolarizing stimuli. Here we show that calcium signaling in an astrocytic network correlates with barrage firing; that active depolarization of astrocyte networks by chemical or optogenetic stimulation enhances; and that chelating internal calcium, inhibiting release from internal stores, or inhibiting GABA transporters or metabotropic glutamate receptors inhibits barrage firing. Thus, networks of astrocytes influence the spatiotemporal dynamics of neural networks by directly integrating neural activity and driving barrages of action potentials in some populations of inhibitory interneurons." @default.
- W2896850724 created "2018-10-26" @default.
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- W2896850724 date "2018-10-18" @default.
- W2896850724 modified "2023-10-16" @default.
- W2896850724 title "Astrocytes integrate and drive action potential firing in inhibitory subnetworks" @default.
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- W2896850724 doi "https://doi.org/10.1038/s41467-018-06338-3" @default.
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