Research Paper Volume 8, Issue 9 pp 2081—2099
Age-related hearing loss: prevention of threshold declines, cell loss and apoptosis in spiral ganglion neurons
Figure 4. DPOAE amplitudes and thresholds for treated and untreated (control) subject groups, following 60 and 120 days of treatment. (a) Amplitudes for the ALD (top) and Control (bottom) groups are similar to each other, and do not change systematically during the treatment period. (b) The DPOAE thresholds show improvement at the higher frequencies for the ALD treatment group at 60 days (top), but not for the Control group (bottom). Graphs show means (±SEM). ANOVA: *p<0.05; **p<0.01, ***p<0.001, ****p<0.0001.