Figure 3

The time-dependent deceleration and infidelity of axonal spike propagation in different spike frequencies. A) shows the normalized velocity (filled symbols) and fidelity (opens) of spike propagation versus time when somatic spikes are induced at 100 Hz. B) shows the normalized velocity (filled symbols) and fidelity (opens) of spike propagation vs. time when somatic spikes are induced at 150 Hz. C) shows the normalized velocity (filled symbols) and fidelity (opens) of spike propagation vs. time when somatic spikes are induced at 200 Hz (n = 12). D) illustrates spike propagation velocity versus fidelity at 200 Hz of spike frequency. The data indicate that the deceleration of spike propagation is ahead of the infidelity.