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. 2012 Dec 2;24(3):785–806. doi: 10.1093/cercor/bhs358

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© The Author 2012. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc/3.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com.

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Figure 9. — Relevance of target specificity for network stability. (A) Population firing rates (top panel) and synchrony (bottom panel), both in logarithmic representation, as a function of the target specificity of candidate projections L2/3e to L4, L2/3e to L6, L5e to L2/3, and L6e to L4, see Supplementary Table 3 for corresponding connection probabilities. A target specificity of zero reflects random connectivity; the gray-shaded area marks the range of target specificity of other interlayer connections (0.33 ± 0.08). (B) Population firing rates of the model with target specificity of candidate projections of +0.4 as a function of the asymmetry of excitatory to inhibitory and excitatory to excitatory synaptic strengths (defined as (w_ie − w_ee)/(w_ie + w_ee), with fixed mean excitatory synaptic strength). Stars indicate firing rates of the reference model with target specificity of candidate projections of −0.4. (C) As B, but as a function of the relative inhibitory synaptic strength. All markers as in Figure 8A.