title: Signaling noncomprehension of language: a comparison of fragile X syndrome and Down syndrome.
abstract: Signaling noncomprehension of the spoken messages of others was examined for youth with fragile X or Down syndrome in comparison with each other and nonverbal MA-matched typically developing children. A direction-following task was used in which some of the directions were inadequate. Both syndrome groups signaled noncomprehension less often than did the typically developing children. The ability to signal noncomprehension appropriately was related to a measure of receptive vocabulary and syntax. Preliminary analyses indicated that males with fragile X syndrome signaled noncomprehension less often than did their female peers, even after controlling for differences in nonverbal MA.
authors.affiliation: Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA. Abbeduto@waisman.wisc.edu
authors.forename: Leonard
authors.initials: L
authors.lastname: Abbeduto
authors.forename: Melissa M
authors.initials: MM
authors.lastname: Murphy
authors.forename: Sara T
authors.initials: ST
authors.lastname: Kover
authors.forename: Nancy D
authors.initials: ND
authors.lastname: Giles
authors.forename: Selma
authors.initials: S
authors.lastname: Karadottir
authors.forename: Adrienne
authors.initials: A
authors.lastname: Amman
authors.forename: Loredana
authors.initials: L
authors.lastname: Bruno
authors.forename: Jee-Seon
authors.initials: JS
authors.lastname: Kim
authors.forename: Susen
authors.initials: S
authors.lastname: Schroeder
authors.forename: Julie A
authors.initials: JA
authors.lastname: Anderson
authors.forename: Kathryn A
authors.initials: KA
authors.lastname: Nollin
mesh_terms: D000293:Adolescent; D003072:Cognition Disorders / Q000175:diagnosis* / Q000453:epidemiology; D004314:Down Syndrome / Q000453:epidemiology*; D005260:Female; D005600:Fragile X Syndrome / Q000453:epidemiology; D006801:Humans; D007802:Language; D008297:Male; D017603:Signal Detection, Psychological; D013067:Speech Perception