Figure 3: A. Comparison of mean (± SEM) spontaneous firing rates of the different experimental groups. Asterisks without bars indicate significance from appropriate sham controls. B. Correlation between the sum of hearing loss and spontaneous firing rates in IC in each individual animal and regression line obtained. C and D. Histograms of mean spontaneous firing rates in CNIC per CF region in sham (white bars), acoustic trauma (grey bars) and mechanical trauma (black bars) groups.C: 2 weeks post-trauma. D. 6 weeks post-trauma *p<0.05 **p<0.01 ***p<0.001, ****p<0.0001.