A comparative study of Piaget's developmental schema of sighted children with that of a group of blind children.
D000367:Age Factors; D001766:Blindness / Q000151:congenital; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D004192:Discrimination, Psychological; D005556:Form Perception; D006801:Humans; D007699:Kinesthesis; D011582:Psychological Theory; D012106:Research; D014110:Touch; D014785:Vision, Ocular