title: Evidence for class-concept mediation of perceptual sets in preschool children.
mesh_terms: D000328:Adult; D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D003210:Concept Formation; D004193:Discrimination Learning; D005556:Form Perception; D006801:Humans; D013647:Task Performance and Analysis; D014705:Verbal Behavior