title: Classification and perceptual development: exploring issues about integrality and differential sensitivity.
mesh_terms: D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003118:Color Perception; D004193:Discrimination Learning; D005556:Form Perception; D006801:Humans; D009949:Orientation; D012858:Size Perception; D014796:Visual Perception