Fig. 2.

Ocular dominance and orientation columns in human visual cortex. Shown in a and b are additionally zoomed ODC maps from the image in Fig. 1b (subject 1) and from another subject (subject 2), respectively. Red and blue represent voxels that demonstrated preference to right and left eye stimulation, respectively. fMRI maps in c and d depict the orientation preference maps from the same cortical areas as their corresponding ODC maps in a and b, respectively. ODC borders are marked with solid black lines on both the ODC and orientation maps. The black and white circles on the orientation preference maps represent areas where multiple preferences converge, or the so called pinwheel centers. This radial arrangement can be either CW (white) or CCW (black). (Color bar: calculated phase at the stimulus frequency; scale bar: 0.5 mm.)