Site-by-site adaptation-induced plasticity of orientation tuning. We recorded from a total of 51 sites (n = 114 cells). The number of cells for each site is indicated, and sites are grouped according to the shift direction of their cells. We distinguished 3 groups: clusters of cells displaying only attractive shifts (blue dots), only repulsive shifts (red dots) and clusters of cells displaying attractive and repulsive shifts simultaneously (mixed red-blue dots). Note that cells that did not shift preferred orientation (n = 9) are not depicted in this figure.