Ocular dominance bands segregate along the cortical axis with slowest local retinotopy gradient. a, Set of ASFs obtained from the same ocular dominance maps illustrated in Figures 2 and 10, but for larger cortical patches. Each ASF was obtained from a patch of an ocular dominance map that matched the size and position of a cortical retinotopic sector. Retinotopic sectors were estimated from published cortical retinotopic maps from human (Horton and Hoyt, 1991), macaque (Van Essen et al., 1984), and cat (Tusa et al., 1978). b, Axis of slowest retinotopy gradient (dotted purple line) shown for each retinotopic sector. Gray lines indicate axes of slowest retinotopic gradient in sectors that could not be properly measured. Because the retinotopic sectors in cat are small and the alignment with the ocular dominance map is prone to large error, only central large sectors are measured. c, Comparison of distributions for axis of slowest retinotopy gradient (dotted purple line) and longest axis of ASFs (solid purple line).