Figure 2.

Negative BOLD signals evoked in the foveal representation in all six subjects tested. Each panel shows a flattened patch of the right hemisphere of one subject, otherwise similar to the inflated cortical surface format shown in Figure 1. Data in the top-left panel corresponds to the hemisphere shown in Figure 1A. In all panels, the foveal representations are indicated with a black circle at the V1-V2 border, an asterisk at the V2-V3 border, a plus sign at the V3-V4 border, and a square at the anterior border of V4. Retinotopic representations of the vertical meridian borders (e.g., the border between V1/V2 and V3/V4) are indicated with solid black lines, and the horizontal meridians (e.g., the border between V2V3) are represented by a dashed black line. The white lines are estimates of the isoeccentricity representation at 0.6^o eccentricity (i.e., the rod-free foveal representation in the retina). For all maps, minimum and maximum thresholds are set at P = 0.05 and P = 10⁻³, respectively.