Figure 2.

Responses of Individual IC Neurons

The frequency versus intensity response area of each example neuron is shown in the top row, and the four rows below show the neuron’s responses to the different VCVs as spike raster plots, for VCVs presented at 60 and 75 dB SPL both without noise and with background noise at +6 dB SNR. Each dot in the raster plots depicts the occurrence of an action potential, and all 32 repetitions are shown for each VCV.

(A) Two example units from control animals.

(B) Two example units from noise-exposed animals.