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Neuron. 2004 Feb 19;41(4):495-511.

Electrical coupling and neuronal synchronization in the Mammalian brain.

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Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA.


Certain neurons in the mammalian brain have long been known to be joined by gap junctions, which are the most common type of electrical synapse. More recently, cloning of neuron-specific connexins, increased capability of visualizing cells within brain tissue, labeling of cell types by transgenic methods, and generation of connexin knockouts have spurred a rapid increase in our knowledge of the role of gap junctions in neural activity. This article reviews the many subtleties of transmission mediated by gap junctions and the mechanisms whereby these junctions contribute to synchronous firing.

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