Figure 18

Time constants of the gating variables for the various currents of the IB cell, as functions of the membrane potential V (see Sect. 2.2 and Appendix D.1). For membrane potentials between −75 mV and −40 mV (between spikes), the M- and h-currents are at least 10 times slower than the rest of the currents. The \(m_{KM}\) variable for the axon compartment has slightly smaller time constant than what is shown here (see Appendix D.1)