Table II.

Summary results of the PCA carried out across voxels within significantly activated visual clusters

Cluster ID	Region definition	Number of voxels within cluster	% variance first PC	% variance second PC	% variance third PC	Ratio*	Correlations factor loading/SSQ**
1a	V1	9	31.38	15.79	13.67	7.35	0.834
2a	V1	11	30.93	12.79	11.90	20.38	0.882
3a	V1	15	26.35	11.40	11.03	40.41	0.759
4a	V2/3	9	33.01	14.81	12.46	7.74	0.828
5a	V2/3	13	31.98	14.10	10.70	5.26	0.833
6a	V4	31	23.21	7.33	6.80	29.96	0.778
7a	V4	21	32.21	9.72	7.62	10.71	0.869
8a	V5/MT	17	24.551	11.34	10.00	9.86	0.747
9a	V5/MT	14	25.92	12.81	11.26	8.46	0.942
10a	V5/MT	11	28.85	13.73	12.85	17.18	0.746

^*Ratio difference in explained variance between the first PC and the second PC pair.

^** P < 0.01, two‐tailed.

^aOne‐component solution.