Extended Data Figure 7: Retinotopic organization of visual inputs.

a, Position of coloured dots indicates the cortical position of spines relative to the cell body on a plane parallel to the cortical surface. Dots are colour-coded according to the spines’ RF position in visual field elevation (left) and visual field azimuth (right) relative to the parent neuron’s RF. Spines from all cells are combined, aligned to the cell body position shown by the black dot. Arrows indicate axes of cortical space that correlate best with changes in receptive field elevation (left) or azimuth (right). b, Relationship between RF distance in elevation (left) and azimuth (right) and cortical distance of spines and soma in the direction of the best fit as indicated by arrows in a. c, Relationship between RF distance in elevation (left) and azimuth (right) and cortical distance of dendrites and soma in the direction of the best fit as indicated by arrows in a, after averaging the position and RF elevation or RF azimuth of all spines on the same dendritic branch. M, medial; A, anterior. n = 32 dendrites, 15 mice (all dendrites for which the cell body position was recovered).