title: Ethnic differences in perceptual testing.
mesh_terms: D001076:Aptitude; D003469:Culture; D004521:Educational Measurement; D005006:Ethnicity; D006801:Humans; D007585:Jews; D008297:Male; D009034:Mother-Child Relations; D010465:Perception; D011581:Psychological Tests; D014110:Touch; D014796:Visual Perception