File:Schematic organization of visual cortex in the marmoset.jpg

English: Schematic organization of visual cortex in the marmoset. “Unfolded” representation prepared using the technique of Van Essen and Maunsell (1980). Discontinuities in the representation, introduced to minimize distortion, are indicated by the arrows. Continuous black lines indicate the main cortical folds, including the lips and fundi of the lateral and calcarine sulci, the fundi of the superior temporal and intraparietal dimples, and the limits of the medial, ventral, and orbital surfaces. The inset on the lower left shows a lateral view of the intact marmoset brain, with boundaries of some visual areas indicated to help orientation. Colors indicate visual areas that have been mapped using electrophysiological techniques; other areas are simply indicated by labels in their approximate location. For abbreviations, see legend of Figure 1. The light gray dashed outlines indicate the borders of the primary auditory (A1), motor (M1), and somatosensory (S1) areas, for orientation. The topographic organization of visual areas is indicated according to the following symbols: white squares, representations of the vertical meridian (VM); black circles, representations of the horizontal meridian (HM); “+,” representations of upper contralateral quadrant; “-,” representations of the lower contralateral quadrant; red dashed lines, isoeccentricity lines (numbers indicate eccentricity from the fovea, in degrees).