title: Interocular suppression differentially affects achromatic and chromatic mechanisms.
abstract: Results from a series of psychophysical experiments show that interocular suppression produced by continuous flash suppression (CFS) differentially affects visual features of a target viewed by the other eye. When CFS stimuli are defined by luminance contrast, target color can be reliably identified but percent-correct discrimination of target orientation is near chance. When the colored target is moving, color identification deteriorates with motion speed but direction of motion discrimination improves with target speed. Color's immunity to suppression is also weakened when interocular suppression is induced by equiluminant CFS stimuli that presumably stimulate the chromatic pathway. These results are discussed in terms of functional segregation of achromatic and chromatic processing in the visual system.
authors.affiliation: Departments of Psychology, Vanderbilt University, Nashville, Tennessee 37023, USA. sang.w.hong@vanderbilt.edu
authors.forename: Sang Wook
authors.initials: SW
authors.lastname: Hong
authors.forename: Randolph
authors.initials: R
authors.lastname: Blake
mesh_terms: D001364:Awareness; D003118:Color Perception; D015350:Contrast Sensitivity; D004193:Discrimination Learning; D006801:Humans; D007266:Inhibition, Psychological; D009039:Motion Perception; D009903:Optical Illusions; D009949:Orientation; D010364:Pattern Recognition, Visual; D010775:Photic Stimulation; D011601:Psychophysics; D013028:Space Perception; D015348:Vision, Binocular; D014794:Visual Fields