. 2015 Sep 1;2:150044. doi: 10.1038/sdata.2015.44

Table 2. rfMRI items examined with our in-house pipeline.

Categories	Items
Head motions	Displacements of each volume in Superior, Left, and Posterior directions.
	Rotations of each volume in degree (roll, pitch, yaw).
CNR/SNR	CNR: the amplitude (I_max–I_min) image divided by the mean standard deviation of non-body background image. For each voxel, I_max and I_min are the 95% and the 5% percentiles of its intensity histogram across time, respectively.
	Histogram of CNR.
	Temporal SNR or tSNR, similar to Signal-to-Fluctuation Noise Ratio²² in Table 1.
Registration	highres2standard: the high-resolution sMRI image registered to the MNI152 template space, with the WM/GM edge of the template shown in red.
	func2standard: the rfMRI images registered onto the 333 mm³ MNI152 template.
	func2highres: the rfMRI images registered onto the 111 mm³ T1 sMRI image.
	Segmentation, with GM, WM, and CSF colored and overlaid on the T1 image.
Other Metrics	Regional homogeneity²³. A measure to evaluate local signal homogeneity.
	Amplitude of low-frequency fluctuation or ALFF²⁴. Measures the energy of low-frequency fluctuations in rfMRI data.
	Fractional ALFF²⁶: Normalized ALFF.