Table 7.

Results of analyses linking performance on the Cattell fluid intelligence test to DMN connectivity and age

					Interaction effect		Correlation in the older group
Nuisance	MR	Filter	Smooth	Measure	T	P	R	P
N	N	PW	8 mm	Pcor	1.11	0.266	−0.02	0.887
CSF	N	PW	8 mm	Pcor	2.29	0.023*	0.10	0.391
WM	N	PW	8 mm	Pcor	2.34	0.020*	0.16	0.197
CC	N	PW	8 mm	Pcor	2.60	0.010*	0.15	0.215
N	Y	PW	8 mm	Pcor	2.34	0.020*	0.14	0.266
CSF	Y	PW	8 mm	Pcor	3.14	0.002*	0.27	0.024*
WM	Y	PW	8 mm	Pcor	2.79	0.006*	0.23	0.054
CC	Y	PW	8 mm	Pcor	2.21	0.028*	0.20	0.094
WM	Y	HP	8 mm	Pcor	2.29	0.023*	0.23	0.058
WM	Y	BP	8 mm	Pcor	1.80	0.073	0.13	0.277
WM	Y	PW	0 mm	Pcor	3.06	0.003*	0.27	0.028*
WM	Y	PW	0 mm	Dcor	2.30	0.022*	0.16	0.191
WM	Y	PW	8 mm	Dcor	2.97	0.003*	0.27	0.023*

Abbreviations: BP = band pass filter; CC = motion regressors + CompCor CSF and WM regressors; CW= motion regressors + CSF regressors + white matter regressors; Dcor = Distance correlation; HP = high pass filter; MR = mean regression; N = No mean regression; N = only motion regressors; Pcor = Pearson correlation; PW = pre‐whitening; Smooth = smoothing; Y = mean regression.

* indicates a statistically significant effect.