Lizbeth H Finestack1, Leonard Abbeduto. 1. University of Minnesota, Department of Speech-Language-Hearing Sciences, 164 Pillsbury Drive SE, Minneapolis, MN 55455, USA. finestack@umn.edu
Abstract
PURPOSE: In this study, the authors examined the expressive language abilities of a subset of highly verbally expressive adolescents and young adults with Down syndrome (DS) and those with fragile X syndrome (FXS) for evidence of syndrome-related differences. FXS gender differences were also examined in an exploratory fashion. METHOD: The authors evaluated 24 adolescents and young adults with DS, 17 adolescents and young adults with FXS, and 21 children with typical development (TD), with the groups matched on nonverbal mental age. Language ability was examined using the Oral and Written Language Scales (OWLS; Carrow-Woolfolk, 1995) and Developmental Sentence Scoring (DSS; Lee, 1974) scores derived from an oral narrative language sample. RESULTS: Study analyses revealed the following group differences: The FXS group outperformed the DS and TD groups on the OWLS measure; the TD group outperformed both other groups on some of the DSS measures; the FXS group outperformed the DS group on the DSS Sentence Point measure; and females with FXS outperformed males with FXS on several measures. CONCLUSIONS: Results contribute to the ongoing construction of the language phenotypes of individuals with DS and individuals with FXS and support the conclusion that there are quantitative rather than qualitative differences in their expressive language profiles.
PURPOSE: In this study, the authors examined the expressive language abilities of a subset of highly verbally expressive adolescents and young adults with Down syndrome (DS) and those with fragile X syndrome (FXS) for evidence of syndrome-related differences. FXS gender differences were also examined in an exploratory fashion. METHOD: The authors evaluated 24 adolescents and young adults with DS, 17 adolescents and young adults with FXS, and 21 children with typical development (TD), with the groups matched on nonverbal mental age. Language ability was examined using the Oral and Written Language Scales (OWLS; Carrow-Woolfolk, 1995) and Developmental Sentence Scoring (DSS; Lee, 1974) scores derived from an oral narrative language sample. RESULTS: Study analyses revealed the following group differences: The FXS group outperformed the DS and TD groups on the OWLS measure; the TD group outperformed both other groups on some of the DSS measures; the FXS group outperformed the DS group on the DSS Sentence Point measure; and females with FXS outperformed males with FXS on several measures. CONCLUSIONS: Results contribute to the ongoing construction of the language phenotypes of individuals with DS and individuals with FXS and support the conclusion that there are quantitative rather than qualitative differences in their expressive language profiles.
Authors: Mabel L Rice; J Bruce Tomblin; Lesa Hoffman; W Allen Richman; Janet Marquis Journal: J Speech Lang Hear Res Date: 2004-08 Impact factor: 2.297
Authors: Leonard Abbeduto; Melissa M Murphy; Stephanie W Cawthon; Erica K Richmond; Michelle D Weissman; Selma Karadottir; Anne O'Brien Journal: Am J Ment Retard Date: 2003-05
Authors: Leonard Abbeduto; Melissa M Murphy; Sara T Kover; Nancy D Giles; Selma Karadottir; Adrienne Amman; Loredana Bruno; Jee-Seon Kim; Susen Schroeder; Julie A Anderson; Kathryn A Nollin Journal: Am J Ment Retard Date: 2008-05
Authors: Gary E Martin; Molly Losh; Bruno Estigarribia; John Sideris; Joanne Roberts Journal: Int J Lang Commun Disord Date: 2013-04-19 Impact factor: 3.020
Authors: Rouzana Komesidou; Nancy C Brady; Kandace Fleming; Amy Esplund; Steven F Warren Journal: J Speech Lang Hear Res Date: 2017-02-01 Impact factor: 2.297
Authors: Elizabeth Berry-Kravis; David Hessl; Leonard Abbeduto; Allan L Reiss; Andrea Beckel-Mitchener; Tiina K Urv Journal: J Dev Behav Pediatr Date: 2013-09 Impact factor: 2.225