Abstract
Neuronal circuits are defined by synaptic connections between their cellular constituents. In this article, I highlight several recent studies emphasizing the surprising level of precision exhibited by inhibitory GABAergic synapses within the neocortex and hippocampus. Specifically, GABAergic inputs to dendritic shafts and spines of pyramidal cells have a key role in the localized regulation of neuronal Ca2+ signalling. These findings provide important new insights into the cellular mechanisms underlying the contributions of inhibitory transmission to both normal and abnormal brain activity.
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Acknowledgements
The author thanks J. Cardin and members of the Higley laboratory for careful reading of this manuscript. The laboratory's work is funded by grants from the US National Institutes of Health (MH099045), the Klingenstein Foundation, The Brain and Behavior Research Foundation and the March of Dimes.
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Higley, M. Localized GABAergic inhibition of dendritic Ca2+ signalling. Nat Rev Neurosci 15, 567–572 (2014). https://doi.org/10.1038/nrn3803
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DOI: https://doi.org/10.1038/nrn3803
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