Table 1. Statistical description of quality metrics (mean±s.e.) from two MRI sessions. Two-tailed paired t-tests were used to compare the means from the two sessions.

Modality	Metric	Session 1	Session 2	Paired t-test
Note: The statistics for rfMRI metrics were calculated after removing the outlier participant 0025932. SNR: signal-noise-ratio; FWHM: full-width half maximum; CNR: Contrast-to-noise ratio; FBER: Foreground to Background Energy Ratio; Mean FD: Mean frame-wise displacement; DVARS: D, temporal derivative of time series, VARS, root-mean-square variance over voxels.
sMRI	SNR	19.88±0.98	17.80±0.82	P=0.0001
	FWHM	3.91±0.02	3.36±0.02	P<0.0001
	CNR	11.05±0.58	8.81±0.42	P<0.0001
	FBER	362.5±40.4	268.6±25.3	P=0.0002
rfMRI	Mean FD	0.094±0.004	0.114±0.003	P<0.0001
	Percent FD greater than 0.2 mm	5.3±0.88	7.21±0.94	P=0.08
	Mean DVARS	20.8±0.29	16.9±0.26	P<0.0001