Table 3.

Outcome of quality checking procedures for diffusion and resting state data. For diffusion data, the number of volumes discarded on average (out of 48) due to motion or other technical issues, and group differences are shown. For resting state data, the number of volumes discarded (out of 176) due to excessive motion, and the maximum and average motion (mm) over all volumes before and after removal of volumes are shown, as well as group differences. Although more volumes were removed and average motion was higher in the prenatal alcohol exposed group, this was not significantly different compared to controls.

	PAE		Controls
	mean	SE	mean	SE	Statistics
Diffusion data
Volumes removed	15	3.06	10	2.18	F = 1.67, p = 0.21
Resting state data
Volumes removed	20	4.72	17	3.04	F = 0.47, p = 0.50
Maximum motion before	3.61	0.41	4.27	0.65	F = 0.65, p = 0.43
Maximum motion after	2.58	0.32	4.10	0.65	F = 3.76, p = 0.06
Average motion before	0.14	0.02	0.12	0.01	F = 1.49, p = 0.23
Average motion after	0.08	0.01	0.07	0.01	F = 1.68, p = 0.21