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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: J Neural Eng. 2015 Sep 8;12(5):056015. doi: 10.1088/1741-2560/12/5/056015

Figure 6.

Figure 6

Effect of c(f) on action potential conduction velocity. (a) Transmembrane voltage (Vm) of a 10 μm myelinated fiber (MRG) and a 2 μm unmyelinated fiber (HH) that had either constant (cdc = 2 μF/cm2 or c∞ = 1.1 μF/cm2 for the myelinated fiber, and cdc = 1 μF/cm2 or c∞ = 0.55 μF/cm2 for the unmyelinated fiber) or frequency-dependent, c(f), capacitance. Vm was recorded at two different locations along each fiber as indicated in the insets (arrow: recording position, black dot: electrode position). The bottom plot shows the applied extracellular stimulus (−250 μA and −100 μA for the myelinated and unmyelinated fiber, respectively). (b) Conduction velocity as a function of fiber diameter for the myelinated (top) and unmyelinated (bottom) fiber models.