Reading and crossmodal transfer of stimulus equivalences in severe retardation.
D000293:Adolescent; D000328:Adult; D001307:Auditory Perception; D004193:Discrimination Learning; D004314:Down Syndrome / Q000534:rehabilitation; D004495:Education of Persons with Intellectual Disabilities; D006801:Humans; D008297:Male; D011380:Programmed Instructions as Topic; D011932:Reading; D013060:Speech; D014163:Transfer, Psychology; D014796:Visual Perception