Fig 5. Conduction velocity studies on a cardiac strand and the effect of gap-junction coupling for symmetric conductance distributions: (top row) Cx43-Cx43 channel, (bottom row) Cx45-Cx45 channel, (left column) instantaneous conductance, (right column) steady-state conductance.

Black and red colors are used to indicate voltage-independent and voltage-dependent gap-junction conduction, respectively. Voltage-dependent models delivered lower conduction velocities than voltage-independent models of gap-junction conductance, particularly for the steady-state regime.