Appendix 1—table 2. Local tractography fibre counts.

2 (pathway: SC-PUL, PUL-AMG)×2 (hemisphere: left, right) design. Thirteen outliers removed out of 622.

Outliers removed	ANOVA main effects					t-tests for Simple Effects
	Effect	Df	F	P	ηp2	Df	T	P
	* Pathway	(1,607)	69.586	4.930 × 10−16*	0.103
	Hemisphere	(1,607)	1.387	0.239	0.002
	* Pathway × Hemisphere	(1,607)	162.48	3.828 × 10−33*	0.211
	* Left vs. Right SC-PUL					608	10.749	8.596 × 10−25*
	* Left vs. Right PUL-AMG					608	−18.205	1.960 × 10−59*
	Pathway × Head Motion	(1,607)	1.815	.178	.003
	Hemisphere × Head Motion	(1,607)	1.39	.239	.002
	Pathway × Hemisphere × Head Motion	(1,607)	1.425	.233	.002
No Outliers Removed	* Pathway	(1,620)	59.749	4.365 × 10−14*	.088
	Hemisphere	(1,620)	0.757	.385	.001
	* Pathway ×Hemisphere	(1,620)	116.962	4.316 × 10−25*	.159
	* Left vs. Right SC-PUL					621	9.378	1.243 × 10−19*
	* Left vs. Right PUL-AMG					621	−17.515	4.068 × 10−56*
	Pathway × Head Motion	(1,620)	1.222	.269	.002
	Hemisphere × Head Motion	(1,620)	1.511	.219	.002
	Pathway × Hemisphere × Head Motion	(1,620)	0.617	.433	.001

*p <.05 .