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. 2012 Mar 8;6:7. doi: 10.3389/fncom.2012.00007

Figure 7.

Figure 7

I-E subnetwork statistics in the LIF model and experimental data. (Ai) In the model with inhibition (same network as Figure 1B), the firing rate of the I-cells (red) is larger than the E-cells (blue). (Bi) In the experimental data, the firing rates of the I-cells are larger (vI,spont = 13.6 Hz and vI,evoked = 103 Hz with n = 48 I-cells). (Aii) In the spiking model with feedforward inhibition, the mean of ρIE is 0.59 (SD of 0.053) in the spontaneous state, and decreases to ρIE = − 0.0026 (SD of 0.028) in the evoked state. This is consistent with the binary analysis prediction in (Figure 6B,C) because the value of c and g are relatively large. (Bii) In the experimental data, the mean of ρIE is 0.057 (SD of 0.083) in the spontaneous state, with a mean ρIE of 0.0009 (SD of 0.056) in the evoked state. The data shows a decrease in ρIE in the evoked state compared to the spontaneous state, and a decrease in the width of the histogram of ρIE values (n = 48 I-E cell pairs). (C) Decrease in ρIE holds across pairs: the decrease is larger with whisker stimulation when spontaneous ρIE is larger in both experimental data (black dots) and the LIF spiking model (dark green dots).