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Table 2 Excitatory connection strengths mediate different firing regimes

From: Investigating the Correlation–Firing Rate Relationship in Heterogeneous Recurrent Networks

\(W_{EI}\) (IE) \(W_{IE}\) (EI) \(W_{EE}\) \(W_{II}\) \(\sigma_{E}\) \(\sigma_{I} \) Figures
Asynchronous 10 5 0.5 5 \(2/\sqrt{2}\) \(3/\sqrt{2}\) Figs. 1, 2, 5(A) and (B)
Str. Asynch. 10 8 9 5 \(1.5/\sqrt{2}\) \(2.5/\sqrt{2}\) Figs. 3, 5(C) and (D)
% connectivity 35 % 20 % 40 % 40 %    
  1. Connectivity details for networks examined in Sect. 2.2. Here \(W_{YX}\) denotes XY connections; e.g. \(W_{IE}\) denotes the strength of excitatory connections onto inhibitory neurons. The parameter \(\sigma_{i}\) denotes the strength of background noise in units of (scaled) voltage, and depends only on cell type (E or I). The parameters \(W_{EE}\), \(W_{IE}\), \(\sigma_{E}\) and \(\sigma_{I}\) will vary in Sects. 2.4 and 2.5; see text for details. For reference, \(W_{XY}=1\) is when the presynaptic input is exactly the average population firing rate (filtered by the synapse) in an all-to-tall homogeneous network.