title: Fixed or variable noise in contrast discrimination? The jury's still out...
authors.forename: Mark A
authors.initials: MA
authors.lastname: Georgeson
authors.forename: Tim S
authors.initials: TS
authors.lastname: Meese
mesh_terms: D015350:Contrast Sensitivity; D004192:Discrimination, Psychological; D006801:Humans; D008960:Models, Psychological; D009010:Monte Carlo Method; D010470:Perceptual Masking; D011601:Psychophysics