Monoptic and dichoptic metacontrast across the vertical meridian.
D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D011601:Psychophysics; D012160:Retina / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology; D014794:Visual Fields; D014795:Visual Pathways