title: Relationships between perceptual and conceptual mediational systems in young children.
mesh_terms: D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003118:Color Perception; D003210:Concept Formation; D004193:Discrimination Learning; D005556:Form Perception; D006801:Humans; D010364:Pattern Recognition, Visual; D014163:Transfer, Psychology