title: Effects of environmental enrichment and environmental deprivation on cognitive functioning in institutionalized retardates.
mesh_terms: D002648:Child; D002674:Child, Institutionalized; D002675:Child, Preschool; D003071:Cognition; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D008297:Male