FIGURE 9: Texture filling-in displays investigated by Watanabe and Cavanagh (1991).

(a) Crosses made of black and white diagonal stripes inserted into the gaps of an Ehrenstein figure. When foveating the center of the grid, subjects perceive a circular contour around the texture crosses. A large percentage of the subjects also report texture within the circular disks. (b) The texture crosses presented alone. Neither circular contours nor texture spreading is reported in this case. From Watanabe and Cavanagh (1993) with permission.