HH Single Compartment Demo Single compartment HH Press 1 to inject a pulse at the soma. The sim runs continuously. Voltage coloration Active gNa (mS/cm²) Active gK (mS/cm²) Passive (leak) gNaP (mS/cm²) Passive (leak) gKP (mS/cm²) Pulse amplitude (µA/cm²) Pulse duration (ms) dt (ms) Reset controls Tip: try lowering active gNa, then see how much stimulus is needed. t = 0.0000 s · V = -65.00 mV