Figure 3.

Presence or absence of transported label in V2v depends on the distance of the injection site from the V2d rostral border. Distance of the injection site from the posterior and anterior boundaries of the CO-defined (gray segments) or label-defined (white and black segments) transition zones at the V2d rostral border. “0 mm” indicates the position of the V2 rostral border, with negative values indicating that the injection was located posterior to this border, that is, in V2d, and positive values that the injection was anterior to this border, that is, in DM+ or anterior dorsal cortex. White and black segments indicate cases that showed, or did not show, respectively, transported label in upper visual field regions of the upper and lower layers of V2v. The case number is indicated on the right; in bold are the cases that showed label in layer 4 of V2v. The “asterisk” indicates cases for which we did not look at layer 4 label separately. The vertical gray bar represents an uncertainty region; injections placed in this region did or did not produce label in the upper and lower layers of V2v, whereas injections to the right (to the left) of this region unequivocally produced (did not produce) label in the upper and lower layers of V2v. The vertical light gray bar represents an uncertainty region for the presence or absence of transported label in layer 4 of V2v; injections to the right of this region produced label in V2v layer 4, whereas injections to the left did not; injections in the light gray region gave mixed results.