Fig. 1From: Orientation Maps in V1 and Non-Euclidean Geometry(Modified from Bosking et al. [7].) An Orientation Preference Map observed in the visual cortex of a tree shrew. The experimental procedure leading to this map is recalled in the main text. See also Swindale [18]. On the upper right corner, details at singular points (pinwheels) or regular points are shownBack to article page