Figure 4.

Illustration of the paradigm. In the visible face condition, a stationary SF filtered face image was shown to both eyes simultaneously (i.e., in the red and green layers). In the invisible face condition, an SF filtered face was shown to one eye (i.e., in the red layer) while dynamic noise patterns were presented at 10 Hz to the other eye (i.e., in the green layer). Target stimuli consisted of a stationary SF filtered stimulus presented to one eye and a combination of a face and noise patterns to the other eye. As a result, participants typically perceived the face image on visible face trials, only the dynamic noise on invisible face trials, and both face and noise on target trials. (Note that the contrast and brightness of the images was slightly modified in the figure to improve readability.)