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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Vision Res. 2011 Feb 15;51(13):1538–1551. doi: 10.1016/j.visres.2011.01.015

Figure 8. Border ownership.

Figure 8

(a) The front surface owns the border, allowing the back surface to extend under it as amodal completion. The T junctions here establish the black square as in front, owning the border between the black and gray areas. The gray area completes forming an amodal square so that searching for the image feature – the L shape – is actually quite difficult (He and Nakayama, 1992) (b) Qiu and von der Heydt (2005) report that some cells tuned to orientation are also selective to which surface, left or right, owns the border. One cell may preferentially fire to the border with the object in front on its left whereas another cell may prefer the front surface, as defined only by contour cues, even without disparity information, to be on the right.