Intrinsic Brain Functional Activity Abnormalities in Episodic Tension-Type Headache

Table 2

Summary of fALFF differences between patients with ETTH and healthy controls.

Brain regions	Brodmann areas	Maximum MNI coordinates (, , )	Cluster size	value
Right posterior insula	BA 48	42, -14, 11	165	4.86
Right anterior insula	BA 38	38, 18, -12	35	3.61
Posterior cingulate cortex	BA 23	0, -48, 28	180	-4.98

fALFF: fractional amplitude of low-frequency fluctuation; ETTH: episodic tension-type headache; BA: Brodmann area; MNI: Montreal Neurological Institute. The significance was determined using a permutation test with threshold-free cluster enhancement family-wise error corrected .