Chapter

Local Circuits

Buhl Eberhard and Whittington Miles

in The Hippocampus Book

Published in print December 2006 | ISBN: 9780195100273
Published online May 2009 | e-ISBN: 9780199864133 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195100273.003.0008

Series: Oxford Neuroscience Series

Local Circuits

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This chapter demonstrates the basic principles involved in local circuits in general and reviews evidence for the organization of local circuits in the hippocampus. Local circuits in the hippocampus are comprised of excitatory connections from principal cells to interneurons and mainly inhibitory interneuronal connections onto principal cells. A smaller number of connections are made up of mutual inhibitory interneuronal interconnectivity and recurrent excitatory connectivity between principal cells. The pattern of local connectivity is diverse and represents a rich tapestry of prospective strategies for modifying initial responses to inputs and post hoc responses to continued input activity on the basis of previously generated outputs.

Keywords: hippocampal neurons; dentate gyrus; hippocampal regions; excitatory connections; principal cells; interneurons

Chapter.  17085 words.  Illustrated.

Subjects: Neuroscience

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