TABLE 3.

Longitudinal FC change results

		MNI coordinates
ROI	Target cluster	x	y	z	T value	Cluster size	Uncorr cluster size p
R posterior parietal cortex (PPC)	L insula	−30	10	2	15.09	90	0.00000015
	R insula	38	16	2	13.19	62	0.000231

Note: Peak MNI coordinates and T value of the clusters in insular cortices. For the SANS subgroup, FC between the right PPC and bilateral insular cortices increased during HDBR+CO₂ then decreased during the recovery phase. The NoSANS subgroup exhibited the opposite pattern. Cluster size indicates the number of voxels within each cluster. Uncorr cluster size p indicates uncorrected cluster‐size p values.

Abbreviations: FC, functional connectivity; R, right; ROI, region of interest.