. Author manuscript; available in PMC: 2014 Jul 31.

Published in final edited form as: J Opt Soc Am A Opt Image Sci Vis. 2014 Apr 1;31(4):A131–A139. doi: 10.1364/JOSAA.31.00A131

Table 3.

Averaged Coefficient Values Across the Illuminant from the First Level of Analysis for the Rhodopsin- and Cone-Opsin-Based Analysis

Component	L	M	S	R	Variance Explained (%)	Notation^a	Pathway
1st	0.54	0.53	0.42	0.5	98.19	L + M + S + R	MC
2nd	−0.36	−0.33	0.86	0.01	1.74	S − (L + M)	KC
3rd	−0.64	0.16	−0.21	0.7	0.06	(M + R) − (L + S)	PC-like
4th	−0.4	0.76	0.13	−0.47	0.01	(M + S) − (L + R)	PC-like

Notation indicates combinations of variables with coefficients >0.10.