title: Temporal uncertainty effects on orientation discrimination and stereoscopic thresholds.
abstract: If a pattern requiring orientation discrimination was presented randomly in one of five clearly demarcated time frames 500 ms apart, orientation thresholds were elevated approximately 20% over their values when the time slot was fixed. For stereoscopic depth discrimination the disparity threshold elevation was approximately 40%.
authors.affiliation: Division of Neurobiology, University of California at Berkeley 94720-3200, USA.
authors.forename: G
authors.initials: G
authors.lastname: Westheimer
authors.forename: E
authors.initials: E
authors.lastname: Ley
mesh_terms: D003867:Depth Perception / Q000502:physiology*; D006801:Humans; D009949:Orientation / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology