Appendix Table A6.

Contribution of each variable to the first four principal components.

	PC1	PC2	PC3	PC4
left.pupilsizemean	13.24	0.26	0.01	0.01
left.pupilsizemedian	12.72	2.37	0.08	0.01
right.pupilsizemean	13.20	0.26	0.01	0.00
right.pupilsizemedian	12.67	2.37	0.07	0.02
left.pupilsizemaxabs	7.60	0.10	5.43	3.18
right.pupilsizemaxabs	7.64	1.60	2.00	1.16
left.pupilsizeminabs	12.31	0.15	0.20	0.03
right.pupilsizeminabs	11.97	2.45	0.37	0.02
conj.pupilsizediffmean	3.30	41.51	0.92	0.51
conj.pupilsizediffmedian	3.09	40.43	2.10	0.60
conj.pupilsizediffvar	1.58	7.36	19.78	0.48
conj.varYbot	0.01	0.71	46.05	32.17
conj.varYtopbotRatio	0.67	0.42	23.06	61.82