Effects of Electrode Position on Spatiotemporal Auditory Nerve Fiber Responses: A 3D Computational Model Study

Figure 6

Responses to low-rate (250 pulses/s) (left column) and high-rate (5,000 pulses/s) (right column) pulse-trains. (a) Examples of post-stimulus-time histograms with the 1 ms bin widths vertical bar and wider bin (0–12, 12–24, 24–48, 48–100, and 100–200 ms) circles. (b) Onset (0–12 ms) response rates for electrodes A–D are plotted as a function of the pulse-train level. (c) The dynamic ranges versus the thresholds for the low- and high-rate pulse-trains are plotted. The threshold was defined as the stimulus level that elicited a 100-spike/s onset response rate. The dynamic range was calculated from curve (b) of the onset rate versus current level.

(a)

(b)

(c)