title: AERs and detection in tasks yielding U-shaped backward masking functions.
mesh_terms: D001921:Brain / Q000502:physiology; D005074:Evoked Potentials, Visual; D006801:Humans; D010470:Perceptual Masking / Q000502:physiology*; D013997:Time Factors; D014796:Visual Perception / Q000502:physiology*