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. 2016 Mar;147(3):273–288. doi: 10.1085/jgp.201511488

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© 2016 Maciunas et al.

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Figure 5. — Synchronization of neuronal clusters. (A and B) Minimum values of g_j necessary for synchronization of neuronal networks (g_j,min-synchr). (A) Repeated APs in cell 1 (red) and cell 2 (blue; b and c) evoked by long depolarizing current pulses shown in a. At g_j = 0, cells exhibited repeated spiking activity at 65 and 95 Hz (b) and g_j = 0.26 nS (c). (B) Summarized data of g_j,min-synchr values in 1-D and 2-D clusters of different sizes depending on differences in their firing rates of neurons, ΔFR. (C) Summary of the minimum g_j necessary for AP transfer between neurons (g_j,min-transf) depending on frequency of APs caused by repeated 2-ms-long I_ext steps of 30 pA. Values of g_j,min-transf were evaluated in the cell pair (1 × 2) and 2-D clusters ranging from 2 × 2 to 7 × 7.