Table 3.

Correlation coefficients between the increased functional connectivity of ACC and PCC and different tinnitus characteristics

Brain region	Tinnitus duration	THQ	SDS	SAS
ACC–left precuneus	r=0.455, p=0.007*	r=0.078, p=0.661	r=−0.082, p=0.690	r=−0.336, p=0.094
PCC–right mPFC	r=−0.115, p=0.518	r=0.381, p=0.026*	r=−0.028, p=0.891	r=0.296, p=0.142

Notes: Partial correlations were controlled for age, sex, education, GM volume, and mean hearing thresholds.

^*p<0.05.

Abbreviations: ACC, anterior cingulate cortex; PCC, posterior cingulate cortex; mPFC, medial prefrontal cortex; THQ, Tinnitus Handicap Questionnaires; SDS, Self-Rating Depression Scale; SAS, Self-Rating Anxiety Scale.