Reduced Variability of Auditory Alpha Activity in Chronic Tinnitus

Figure 4

Alpha variability group comparison. The bar plots demonstrate the group difference for the variability of the temporal alpha power. Coefficients of variation are shown for both groups, for the lower and upper alpha band separately. Group differences are only significant for the lower alpha band from 8 to 10 Hz with 𝑃=0.004.

(a) Low alpha (8–10 Hz)

(b) High alpha (10–12 Hz)