Table 1.

Model parameters

SymbolRangeDescription
1.max Gi[J(x)]20–100 HzMaximum firing rate
2.Gi[J(x)] = 0−1 to 1Normalized x-axis intercept
3. J i bias Satisfies 1 and 2Bias current
4.αiSatisfies 1 and 2Gain factor
5. φ̃ i ‖φ̃i‖ = 1Preferred-direction (encoding) unit vector
6.τiRC5–15 msRC time constant
7.τadapt1–200 msAdaptation time constant
8. G inc 20 nSAdaptation conductance
9.τiref1 msRefractory period
10.τPSC100 msPSC time constant