Figure 3.

Neurograms—IC Population Responses

Average neurograms were constructed by taking the PSTH (1-ms binning) from each of the 154 neurons in each group in response to all repetitions of a specific VCV as a “line” in the neurogram. PSTHs were arranged by characteristic frequency with lower CFs represented at the bottom of each neurogram and increasing CFs at the top. The PSTH across all neurons is shown above each neurogram. This figure shows neurogram for the VCV “AGA,” presented at 60 and 75 dB SPL, for different SNRs (from top to bottom: no noise, +12 dB SNR; +6 dB SNR, 0 dB SNR, −6 dB SNR). The two columns on the left show neurograms from the control dataset for 60 and 75 dB SPL, and the two columns on the right show neurograms from the noise-exposed dataset for the same sound intensities.