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The parameters of the AdEx and CAdEx networks for which results are presented in Figure 1 are shown in Tables 3, 4, and 5. The input to both networks was given by current noise injected to all neurons and had the form of an Ornstein-Uhlenbeck process, with the same parameters: a variance, σ=2.4pA, and a time constant, τ=100ms. The neurons were connected by conductance-based synapses (see appendix A3).

Table 3:
AdEx Network Parameters.
AdEx
Excitatory CellsInhibitory Cells
Population 800 200 
Capacitance C 150 pF 
Leak conductance gL 10 nS 
Leak reversal potential EL −63 mV −65 mV 
Spike threshold VT -50 mV 
Spike initiation slope ΔT 2 mV 0.5 mV 
Adaptation time constant τw 500 mV n.a. 
Post-spike adaptation increment b 107 pA n.a. 
Subthreshold adaptation a 0 nS n.a 
Quantal synaptic conductance QE/I 1.2 nS 5 nS 
Synaptic reversal potential EE/I 0 mV −75 mV 
AdEx
Excitatory CellsInhibitory Cells
Population 800 200 
Capacitance C 150 pF 
Leak conductance gL 10 nS 
Leak reversal potential EL −63 mV −65 mV 
Spike threshold VT -50 mV 
Spike initiation slope ΔT 2 mV 0.5 mV 
Adaptation time constant τw 500 mV n.a. 
Post-spike adaptation increment b 107 pA n.a. 
Subthreshold adaptation a 0 nS n.a 
Quantal synaptic conductance QE/I 1.2 nS 5 nS 
Synaptic reversal potential EE/I 0 mV −75 mV 
Table 4:
CAdEx Network Parameters.
CAdEx
Excitatory CellsInhibitory Cells
Population 800 200 
Capacitance C 150 pF 
Leak conductance gL 10 nS 
Leak reversal potential EL −63 mV −65 mV 
Spike threshold VT -50 mV 
Spike initiation slope ΔT 2 mV 0.5 mV 
Adaptation time constant τA 500 mV n.a. 
Postspike adaptation increment δgA 5 nS n.a. 
Maximal subthreshold adaptation g¯A 0 nS n.a 
Adaptation reversal potential EA −70 mV n.a 
Quantal synaptic conductance QE/I 1.2 nS 5 nS 
Synaptic reversal potential EE/I 0 mV −75 mV 
CAdEx
Excitatory CellsInhibitory Cells
Population 800 200 
Capacitance C 150 pF 
Leak conductance gL 10 nS 
Leak reversal potential EL −63 mV −65 mV 
Spike threshold VT -50 mV 
Spike initiation slope ΔT 2 mV 0.5 mV 
Adaptation time constant τA 500 mV n.a. 
Postspike adaptation increment δgA 5 nS n.a. 
Maximal subthreshold adaptation g¯A 0 nS n.a 
Adaptation reversal potential EA −70 mV n.a 
Quantal synaptic conductance QE/I 1.2 nS 5 nS 
Synaptic reversal potential EE/I 0 mV −75 mV 
Table 5:
Network Connectivity.
Excitatory CellsInhibitory Cells
Excitatory cells 12% 10% 
Inhibitory cells 10% 12% 
Excitatory CellsInhibitory Cells
Excitatory cells 12% 10% 
Inhibitory cells 10% 12% 

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