Human discrimination and modeling of high-frequency complex tones shed light on the neural codes for pitch
Fig 4
Comparison of the availability of spectrally resolved harmonics at low and high frequencies in an excitation pattern simulation.
Excitation patterns (average firing rate versus CF) for high-spontaneous-rate (HSR) auditory-nerve fibers (left) and low-spontaneous-rate (LSR) auditory-nerve fibers (right) responding to the stimuli in Experiment 1b based on a computational model of the auditory periphery [52]. The solid curve indicates the average excitation pattern while the filled area around the curve indicates ±1 standard deviation (over 10 simulations with different samples of masking noise and level roving). Vertical dashed lines indicate the frequencies of target harmonics. The F0 difference between the target and masker was 3%. See Materials and Methods for more details on the simulations.