Table 6.

Differences between FND participants with pain, FND participants without pain, and controls.

Site	Mean value pain-FND group across sites log(μV2)	Mean value nonpain-FND group across sites log(μV2)	Mean value control group across sites log(μV2)	F	df	p-valuea	Cohen's d effect size
Eyes-open delta power band
dmPFC cluster	1.62	1.56	1.52	2.873	2111	0.061	0.45
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.018.
PCC cluster	1.59	1.54	1.48	3.283	2111	0.041	0.48
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.013.
Precuneus cluster	1.53	1.47	1.40	4.030	2111	0.020	0.45
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.006.
Lateral parietal cluster	1.53	1.50	1.45	1.874	2, 111	0.158	0.37
Post hoc LSD analyses showed trend-level differences only between the pain-FND and control group, p = 0.061.
Dorsal ACC cluster	1.58	1.54	1.50	2.253	2, 111	0.110	0.40
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.037.
Premotor/SMA cluster	1.58	1.54	1.49	2.567	2111	0.081	0.43
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.029.
Eyes-open theta power band
dmPFC cluster	1.52	1.47	1.41	2.637	2, 111	0.076	0.43
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.025.
PCC cluster	1.47	1.42	1.36	2.931	2111	0.057	0.46
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.018.
Precuneus cluster	1.30	1.26	1.18	2.686	2111	0.073	0.44
Post hoc LSD analyses showed significant differences only between the pain-FND and control group, p = 0.031.
Lateral parietal cluster	1.36	1.34	1.25	2.215	2111	0.114	0.40
Post hoc LSD analyses showed trend-level differences only between the pain-FND and control group, p = 0.056.
Insula cluster	1.15	1.08	1.04	2.365	2, 111	0.099	0.41
Post hoc LSD analyses showed significant differences only between the pain and control group, p = 0.032.
Premotor/SMA cluster	1.47	1.41	1.36	2.750	2111	0.068	0.44
Post hoc LSD analyses showed significant differences only between the pain and control group, p = 0.022.

^aSignificant values are printed in bold.