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Correction of Distortion in Flattened Representations of the Cortical Surface Allows Prediction of V1-V3 Functional Organization from Anatomy

Figure 1

The retinotopic organization of visual cortex as measured and modeled.

(A) The polar angle map, of a subject from our 10° dataset, shown on an inflated left hemisphere. (B) The eccentricity map of the subject shown in part A, shown on an inflated right hemisphere. (C) The algebraic model of retinotopic organization. V1, V2, and V3 are colored white, light gray, and dark gray, respectively. (D) The cortical surface atlas space (fsaverage_sym) from the occipital pole after flattening to the 2D surface. The Hinds V1 border [7] is indicated by the dashed black line, and the algebraic model of retinotopic organization used in registration is plotted with all 0°, 90°, and 180° polar angle lines colored according to the legend and the 10° and 90° eccentricity lines dashed and colored white. Shown are the Calcarine Sulcus (CaS), the Parietal-occipital Sulcus (PoS), the Lingual sulcus (LiS), the Inferior Occipital Sulcus (IOS), the Collateral Sulcus (CoS), the posterior Collateral Sulcus (ptCoS), the Inferior Temporal Sulcus (ITS), and the Occipital Pole (OP).

Figure 1

doi: https://doi.org/10.1371/journal.pcbi.1003538.g001