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. 2025 May 9;11:45. doi: 10.1038/s41540-025-00527-9

Table 4.

Synaptic connectivity of the multicompartment network model

Symbol Value/definition Description
G®synYX 0.15nSforX=E,Y=E0.125nSforX=E,Y=I4.5nSforX=I,Y=E2.0nSforX=I,Y=I Mean of the normal distribution that defines the maximum synaptic conductance of recurrent connections
σ(GsynYX) 0.1G®synYX Standard deviation of the maximum synaptic conductance
CYX 0.05 for all X, Y Connection probability (pairwise Bernoulli, no autapses)
EsynX 0 mV for X = E, -80 mV for X = I Synaptic reversal potential
fYX (t) e(tts)/τ1e(tts)/τ2eτpeak/τ1eτpeak/τ2where τpeak=τ2τ1τ2τ1logτ2τ1 Synaptic temporal kernel
τ1 0.2 ms for X = E, 0.1 ms for X = I Synaptic rise time constant
τ2 1.8 ms for X = E, 9.0 ms for X = I Synaptic decay time constant
Δ®YX 1.5 ms for X=E, Y=E1.4 ms for X=E, Y=I1.3 ms for X=I, Y=E1.2 ms for X=I, Y=I Mean of the truncated normal distribution that defines the conduction delay (truncated at 0.3 ms)
σ(ΔYX) 0.3 ms for X=E, Y=E0.4 ms for X=E, Y=I0.5 ms for X=I, Y=E0.6 ms for X=I, Y=I Standard deviation of conduction delays
LYX (z) N0,1002+N500,100,forX=E,Y=E,S{soma}N50,100forX=E,Y=I,S{soma}N50,100forX=I,Y=EN100,100forX=I,Y=I Normal distributions that define synaptic density in the z-axis
G®synYext 0.2 nS External synapse conductance
Eext 0 mV Ext. synapse rev. potential
fYext (t) fYX (t) Ext. synapse temporal kernel
τ1 0.2 ms Ext. synapse rise time constant
τ2 1.8 ms Ext. synapse decay time constant
kYext {465, 160} Number of ext. synapses per neuron
υext 40 s−1 (Poisson statistics) Ext. syn. activation rate
Δ®Yext δ(t) Ext. syn. conduction delay
LYext 1 Ext. syn. depth dependence