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. 2014 Apr 29;8:50. doi: 10.3389/fncom.2014.00050

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Copyright © 2014 Migliore, Cavarretta, Hines and Shepherd.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Mitral cell—granule cell connectivity. (A) Each dendrodendritic synapse was formed by selecting a dendritic mitral cell segment every 10 μm (on average) and randomly selecting a granule cell within a 50 μm rectangular volume deep to that site in the GCL, as shown in the diagram. (B) (top) Schematic representation of the connectivity from a mitral cell point of view; a given dendrite along its entire length connects to many more granule cells; Below each panel is reported the proportion of granule cells with a given number of synapses with mitral cells (left), and the proportion of mitral cells connected to a given number of granule cells (right) using 1 synapse per 2, 10, and 20 μm; Both plots were generated with a model including a total number of 122,166 (gray and white bars) or 16,013 (red bars) granule cells. Close to each graph is indicated the number of granule cells effectively connected for each case.