title: The effect of stimulus duration and monocular viewing on the "oblique effect" in peripheral vision.
abstract: Luminance thresholds were obtained for narrow bars of light in vertical, horizontal and oblique orientations. From 5 degrees to 60 degrees into the periphery, a small but significant elevation in threshold was found for stimuli in oblique orientations. The monocularly obtained data replicate an earlier report using binocular presentations and a stimulus duration of 100 msec. When exposure time was 10 msec or 500 msec, this effect of orientation broke down. Theoretical implications are discussed.
mesh_terms: D004056:Differential Threshold; D004192:Discrimination, Psychological / Q000502:physiology; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008027:Light; D009433:Neural Inhibition; D009799:Ocular Physiological Phenomena; D009949:Orientation / Q000502:physiology*; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology; D013997:Time Factors; D014792:Visual Acuity; D014794:Visual Fields; D014796:Visual Perception / Q000502:physiology*