title: Psychophysical scaling of brightness and shape dimensions in mentally retarded persons.
mesh_terms: D000293:Adolescent; D000328:Adult; D003118:Color Perception; D003463:Cues; D004193:Discrimination Learning; D005260:Female; D005556:Form Perception; D006801:Humans; D008607:Intellectual Disability; D007360:Intelligence; D008027:Light; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D011601:Psychophysics; D014796:Visual Perception