Table 2.
Model parameters
| Parameter | Value |
|---|---|
| Neuron parameters | |
| Membrane capacitance (Cm) | 250 pF |
| Membrane time constant (τm) | 20 ms |
| Resting membrane potential (Vrest) | −70 mV |
| Refractory period (τref) | 2 ms |
| Spike threshold (Vth) | −55 mV |
| Excitatory synapse properties | |
| Excitatory reversal potential | 0 mV |
| Excitatory time constant | 1 ms |
| Static unitary EPSP | 0.5–4 mV @ −70 mV |
| Synaptic delay | 1 ms |
| Short-term dynamics of excitatory synapses | |
| Synaptic decay time constant (τpscexc) | 1.5 ms |
| Recovery time constant (τrecexc) | 30 ms |
| Facilitation time constant (τfacexc) | 500 ms |
| Fraction of opened calcium channels (Uexc) | 0.02–0.5 |
| Synaptic amplitude scaling (Aexc) | 1.5–337.5 (EPSP range: 0.5–4 mV) |
| Inhibitory synapse properties | |
| Inhibitory reversal potential | −80 mV |
| Inhibitory time constant | 5 ms |
| Static unitary IPSP | −0.3 to −1.4 mV @ −70 mV |
| Synaptic delay | 2.5 ms |
| Short-term dynamics of inhibitory synapses | |
| Synaptic decay time constant (τpscinh) | 1.5 ms |
| Recovery time constant (τpscinh) | 100 ms |
| Facilitation time constant (τpscinh) | 800 ms |
| Fraction of opened calcium channels (τpscinh) | 0.03–06 |
| Synaptic amplitude scaling (τpscinh) | −1.667 to −150 (IPSP range: −0.3 to −1.4 mV) |