Figure 4.

Comparison of amplitude-frequency characteristics in the cables with and without a shunt. The long broken line and solid line, respectively, denote amplitude-frequency characteristics of the cable with a shunt (g = 880 pS) at the sealed end (x = 0) and the shunt end (x = L) in response to the AC extracellular stimuli. The dotted line denotes amplitude-frequency characteristics of the cable without shunt (g = 0 pS). These results were obtained from Eq. 22. The dots show the amplitude-frequency responses of the cable equation with the shunt at the shunt end (x = L) obtained by the implicit method in the sinusoidal steady state. Only the leaky part of the cable with the shunt shows a frequency preference. The amplitude of the frequency response at the sealed end of the cable with the shunt is larger than that of the cable without the shunt.