Table 2.
Summary of analyses for specific frequency windows described by Llinás et al. [11, 12]. r mAAC,Group∣Age denotes the partial correlation between mAAC and group assignment controlling for age. A positive correlation indicates an increase of mAAC in the tinnitus group compared to the controls. r mAAC,Age is the zero-order correlation between mAAC and age. t mAAC~Group gives the two-sample t statistic for comparing mAAC between tinnitus participants and controls. All effect sizes are measured in terms of Cohen's d; CI denotes the confidence interval for d. The hemispheric comparison is between mAAC in the auditory cortices ipsilateral and contralateral to the tinnitus in subjects with unilateral tinnitus; the t statistic is for a pairwise test. All p values are computed by means of nonparametric permutation tests.
Theta window (4 Hz ≤ f 1, f 2 ≤ 8 Hz) |
Theta-beta/gamma window (4 Hz ≤ f 1 ≤ 8 Hz, 13 Hz ≤ f 2 ≤ 40 Hz) |
|
---|---|---|
r mAAC,Group∣Age | −0.048 (p = 0.75) | 0.082 (p = 0.58) |
Effect size d | −0.110 (CI: −0.84, 0.70) | 0.188 (CI: −0.47, 0.89) |
t mAAC~Group | 0.635 (p = 0.54) | 1.808 (p = 0.070) |
Effect size d | 0.189 (CI: −0.48, 0.81) | 0.537 (CI: −0.03, 1.10) |
r mAAC,Age | 0.264 (p = 0.07) | 0.384 (p = 0.004) |
Hemispheric comparison | t = −0.418 (p = 0.68) | t = −0.122 (p = 0.91) |