Table 4. Fixed parameters for the LIF OB–PC model, see Eqs 65–67.
| Same for both OB and PC | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Parameter | τm | τref | τd,I | τr,I | τd,E | τr,E | αI | αE | ||
| 20 ms | 2 ms | -2.5 | 6.5 | 10 ms | 2 ms | 5 ms | 1 ms | 2 Hz | 1 Hz | |
| Parameter | N | Spont. μ | Evoked μ | σ | γEE | γIE | γII | τΔ,PC/OB | ||
| OB | 100 | 0.6 | 0.9* | 0.05 | 0.5 | 2 | 4 | 2 | 10 ms | |
| PC | 100 | 0 | 0.4 | 0.1 | 0.8 | 5 | 8 | 6 | 5 ms | |
All 12 probabilities of connections are set to pXY = 0.30; otherwise connections were chosen randomly and independently (Erdős-Rényi graphs). The synaptic time delay from OB to PC is τΔ,OB = 10ms, and from PC to OB is τΔ,PC = 5ms. The scaled voltages in mV are: (V+Vreset)/(Vth+Vreset), corresponding to Vreset = Vleak = -65 mV, Vth = -55 mV (on average), excitatory reversal potential of 0 mV and inhibitory reversal potential of -90 mV.
*Note: in the evoked state, only the M/T (E-cells) in OB receive a larger μ input from 0.6 to 0.9; the granule cells in OB have μ = 0.6 even in the evoked state.