Carolyn Quam1,2, Holly Cardinal3, Celeste Gallegos3, Todd Bodner4. 1. Department of Speech and Hearing Sciences, Portland State University, Portland, OR, USA. 2. Departments of Speech, Language, and Hearing Sciences and Psychology, University of Arizona, Tucson, AZ, USA. 3. Department of Speech, Language, and Hearing Sciences, University of Arizona, Tucson, AZ, USA. 4. Department of Psychology, Portland State University, Portland, OR, USA.
Abstract
PURPOSE: To investigate links between sound discrimination and explicit sound-meaning mapping by preschoolers with and without developmental language disorder (DLD). METHOD: We tested 26 children with DLD and 26 age- and gender-matched peers with typical language development (TLD). Inclusion was determined via results of standardised assessments of language and cognitive skills and a hearing screening. Children completed two computerised tasks designed to assess pitch and duration discrimination and explicit mapping of pitch- and duration-contrasting sounds to objects. RESULT: Children with TLD more successfully mapped pitch categories to meanings than children with DLD. Children with TLD also showed significantly better overall sound discrimination than children with DLD. Sound-discrimination scores were marginally associated with overall sound-meaning mapping in multivariate analyses of covariance (MANCOVAs). Correlation tests indicated significant associations between discrimination and mapping, with moderate to large effect sizes. Thus, significant sound-discrimination differences between the groups may contribute to differences in sound-meaning-mapping accuracy. CONCLUSION: Children with DLD had more difficulty mapping sound categories to meanings than TLD peers. We discuss possible explanations for this finding and implications for theoretical accounts of the aetiology of DLD.
PURPOSE: To investigate links between sound discrimination and explicit sound-meaning mapping by preschoolers with and without developmental language disorder (DLD). METHOD: We tested 26 children with DLD and 26 age- and gender-matched peers with typical language development (TLD). Inclusion was determined via results of standardised assessments of language and cognitive skills and a hearing screening. Children completed two computerised tasks designed to assess pitch and duration discrimination and explicit mapping of pitch- and duration-contrasting sounds to objects. RESULT: Children with TLD more successfully mapped pitch categories to meanings than children with DLD. Children with TLD also showed significantly better overall sound discrimination than children with DLD. Sound-discrimination scores were marginally associated with overall sound-meaning mapping in multivariate analyses of covariance (MANCOVAs). Correlation tests indicated significant associations between discrimination and mapping, with moderate to large effect sizes. Thus, significant sound-discrimination differences between the groups may contribute to differences in sound-meaning-mapping accuracy. CONCLUSION: Children with DLD had more difficulty mapping sound categories to meanings than TLD peers. We discuss possible explanations for this finding and implications for theoretical accounts of the aetiology of DLD.
Entities:
Keywords:
developmental disorders; developmental language disorder; language development; preschoolers; specific language impairment; speech perception
Authors: Martina Hedenius; Jonas Persson; Antoine Tremblay; Esther Adi-Japha; João Veríssimo; Cristina D Dye; Per Alm; Margareta Jennische; J Bruce Tomblin; Michael T Ullman Journal: Res Dev Disabil Date: 2011-08-12
Authors: Laurence B Leonard; Susan Ellis Weismer; Carol A Miller; David J Francis; J Bruce Tomblin; Robert V Kail Journal: J Speech Lang Hear Res Date: 2007-04 Impact factor: 2.297
Authors: Jennifer Zuk; Jenya Iuzzini-Seigel; Kathryn Cabbage; Jordan R Green; Tiffany P Hogan Journal: J Speech Lang Hear Res Date: 2018-03-15 Impact factor: 2.297
Authors: Alessandra Sansavini; Maria Elena Favilla; Maria Teresa Guasti; Andrea Marini; Stefania Millepiedi; Maria Valeria Di Martino; Simona Vecchi; Nadia Battajon; Laura Bertolo; Olga Capirci; Barbara Carretti; Maria Paola Colatei; Cristina Frioni; Luigi Marotta; Sara Massa; Letizia Michelazzo; Chiara Pecini; Silvia Piazzalunga; Manuela Pieretti; Pasquale Rinaldi; Renata Salvadorini; Cristiano Termine; Mariagrazia Zuccarini; Simonetta D'Amico; Anna Giulia De Cagno; Maria Chiara Levorato; Tiziana Rossetto; Maria Luisa Lorusso Journal: Brain Sci Date: 2021-05-17