Binocular rivalry suppression: Insensitive to spatial frequency and orientation change

Abstract

The selectivity of rivalry suppression, defined as sensitivity to new information presented during suppression, was measured by determining the detectability of changes in the suppressed rivalry stimulus. The stimulus was a vertical grating whose spatial frequency or orientation could be changed without altering contrast or mean luminance. Large changes in frequency and orientation were not detectable. Increments in contrast were detectable, but not decrements. Suppression is fundamentally nonselective, remaining insensitive to all classes of stimulus change except those constituting an energy increment. © 1974.