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Analyzed data from human SC: A) Visual field maps on the surface of the SC, with quality enhanced by depth averaging. Boundaries of SC are indicated by the black outline. B) Profiles of SC activity as a function of depth within the tissue for three ROIs (lateral: solid, central: long dashes, medial: short dashes). Inset shows the locations of the depth-profile ROIs: lateral, central and medial (left to right).
