Skip to main content
. 2014 Sep 3;34(36):12145–12154. doi: 10.1523/JNEUROSCI.1025-14.2014

Figure 8.

Figure 8.

Effects of input sound level, the number of CFs, and the spontaneous rate of the AN fibers on the neural TFS and ENV are evaluated. For these simulations, 10 different IEEE sentences were used. IEEE sentences were presented in modulated noise at −15 dB SNR. ρTFS and ρENV values were computed between the phase vocoded (with NF = 0) signals of the mixture (i.e., target IEEE sentence in the presence of modulated noise) and the corresponding target IEEE sentence (processed with NF = 0). A, Mean ρTFS and ρENV values averaged across four CFs (200–2500 Hz) for input stimulus of 35 and 65 dB SPL. The AN fibers were set to have a spontaneous rate of 50 spikes per second for these simulations. B, Mean ρENV values averaged across four CFs (200–2500 Hz) and seven CFs (200–8000 Hz). For these simulations, stimuli were presented at 35 dB SPL and the model was run with the spontaneous rate of 50 spikes per second. C, Mean ρTFS and ρENV values averaged across four CFs (200–2500 Hz) for three different spontaneous rates (5, 25, and 50 spikes per second). For these simulations, stimuli were presented at 35 dB SPL. Error bars represent 1 SE across 10 IEEE sentences.