Figure 7. Procrustes transformations for two example cells.

Left column shows L-filters obtained from Cartesian stimulus set; middle column shows the effect of Procrustes transformation (Figure 5C) on these 3 different profiles, and right column shows L-filter obtained from polar stimulus set. The top row is the complete L-filter; the middle row is the odd-rank component, and the bottom row is the even-rank component. Consistent with the analysis of Figure 6, the Procrustes transformation of the Cartesian L-filter recovers some of the features of the polar L-filter for odd ranks (middle row), but not for even ranks (bottom row).