Table 1.
Parameters used if not indicated otherwise
| Uncoupled population | ||
|---|---|---|
| N | 1000 | Size of readout population |
| τ | 20 ms | Membrane time constant |
| V 0 | 15 mV | Resting potential |
| 1 ms | Refractory period |
| Jext | 0.1 mV | Mean weight of background spikes |
| 20 mV | Threshold voltage |
| 10 mV | Reset voltage |
| NB | 1000 | Number of background neurons |
| 1.35 Hz | Mean background rate |
| 333 ms | Mean up state duration |
| 200 ms | Mean down state duration |
| 1 | γ Distribution scale parameter |
| 0.3 mV | Signal standard deviation |
| f0 | 0 Hz | Lower signal cutoff frequency |
| fC | 75 Hz | Upper signal cutoff frequency |
| 0.1 ms | Simulation time step |
| T | 4000 ms | Simulation time for one trial |
| Recurrent network (where different from above) | ||
| NS | 1000 | Size of signal population |
| rS | 1 Hz | Baseline rate of signal population |
| 0.15 | Relative rate modulation |
| 1.9 Hz | Mean background rate |
| 200 ms | Mean up state duration |
| 50 | γ Distribution scale parameter |
| NE | 10,000 | Size of excitatory population |
| NI | 2500 | Size of inhibitory population |
| J | 0.1 mV | Weight of recurrent connections |
| CE | 1000 | Number excitatory connections |
| CI | 250 | Number inhibitory connections |
| V0 | 11 mV | Resting potential |
| g | 4.5 | Relative strength of inhibition |
| D | 1.5 ms | Delay |
| Traveling UD | ||
| l | 4 mm | Extent of background population |
| c | 10 mm/s | Propagation speed |