Figure 1.

Stimuli. A, Sample images used to construct stimuli in the psychophysical and fMRI experiments. The left and the middle images are 5° side views of a face, which tilt to left or right, respectively. The right image is a textured occluder with irregular holes. B, Sample stimuli in the psychophysical and fMRI experiments. They were generated by masking a face image with a textured occluder and were presented stereoscopically by using red/blue anaglyphic glasses. Disparity information specified that the face image could be either behind (FBO, left) or in front of (FIO, middle) the occluder. An isolated purple face (FO, right) was also presented in the experiments. C, Perceptual effects of FBO and FIO stimuli. FBO stimulus is perceptually completed and organized into a coherent face (left), while FIO stimulus is perceived as disjoint fragments floating over a textured plane (right).