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. 2011 Jul 19;6(7):e21928. doi: 10.1371/journal.pone.0021928

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Diwakar et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) Granule cell (GrC) responses generated by combining the input from 1 to 4 mossy fibers with inhibition from 0 to 4 Golgi cells (GoC). This gives rise to 20 fundamental combinations. Excitation and inhibition consist of a single pulse, with inhibition occurring 4 ms after the beginning of excitation. N_2a is generated by the first and N_2b by the second spike in a doublet. Schematics of the circuit are shown at the top. (B) The LFP in vitro is generated by jittered convolution of different responses in a 600 granule cell cluster, four of which are shown at the top. (C) The LFP control by synaptic receptors accounts for experimental observations: N_2b, but not N_2a, is increased by GABA-A receptor switch-off and reduced by subsequent NMDA receptor switch-off.