title: Threshold nonlinearities and signal detection theory.
abstract: The review summarizes Kulikowski's contributions to the mechanisms involved in visual detection and discrimination. His findings provide strong evidence for the existence of 'barriers' which block weak activity in the visual system. It is proposed that the properties of these barriers may underlie near-optimal detection in conditions of signal uncertainty.
authors.affiliation: College of Optometry, Ohio State University, PO Box 182342, Columbus, OH 43218-2342, USA. eking-smith@optometry.osu.edu
authors.forename: P Ewen
authors.initials: PE
authors.lastname: King-Smith
mesh_terms: D004192:Discrimination, Psychological; D006801:Humans; D011601:Psychophysics; D012684:Sensory Thresholds / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*