Consonant and syllable complexity of toddlers with Down syndrome and mixed-aetiology developmental delays

References

• Abidin, R. R. (1995). Parenting Stress Index (3rd ed.). Odessa, FL: Psychological Assessment Resources.
   Google Scholar
• Bayley, N. (1993). Bayley Scales of Infant Development (2nd ed.). San Antonio, TX: Psychological Corporation.
   Google Scholar
• Berglund, E., Eriksson, M., & Johansson, I. (2001). Parental reports of spoken language skills in children with Down syndrome. Journal of Speech, Language, and Hearing Research, 44, 179–191.
   PubMed Web of Science ®Google Scholar
• Bernhardt, B., & Stemberger, J. P. (2002). Intervocalic consonants in the speech of English-speaking Canadian children with phonological disorders. Clinical Linguistics and Phonetics, 16, 199–214.
   PubMed Web of Science ®Google Scholar
• Bleile, K., & Schwarz, I. (1984). Three perspectives of the speech of children with Down’s syndrome. Journal of Communication Disorders, 17, 87–94.
   PubMed Web of Science ®Google Scholar
• Cardoso-Martins, C., Mervis, C. B., & Mervis, C. A. (1985). Early vocabulary acquisition by children with Down syndrome. American Journal of Mental Deficiency, 90, 177–184.
   PubMedGoogle Scholar
• Chapman, R. S., Seung, H.-K., Schwartz, S. E., & Kay-Raining Bird, E. (1998). Language skills of children and adolescents with Down syndrome: II. Production deficits. Journal of Speech, Language, and Hearing Research, 41, 861–873.
   PubMed Web of Science ®Google Scholar
• Cleland, J., Wood, S., Hardcastle, W., Wishart, J., & Timmins, C. (2010). Relationship between speech, oromotor, language and cognitive abilities in children with Down’s syndrome. International Journal of Language and Communication Disorders, 45, 83–95.
   PubMed Web of Science ®Google Scholar
• Conners, F. A. (2003). Phonological working memory difficulty and related interventions. In J. A. Rondal, & S. Buckley (Eds.), Speech and language intervention in Down syndrome (pp. 32–48). London: Whurr.
   Google Scholar
• Davis, B. L. (1998). Consistency of consonant patterns by word position. Clinical Linguistics and Phonetics, 12, 329–348.
   Web of Science ®Google Scholar
• Dodd, B. (1972). Comparison of babbling patterns in normal and Down-syndrome infants. Journal of Mental Deficiency Research, 16, 35–40.
   PubMedGoogle Scholar
• Fasolo, M., Majorano, M., & D’Odorico, L. (2008). Babbling and first words in children with slow expressive development. Clinical Linguistics and Phonetics, 22, 83–94.
   PubMed Web of Science ®Google Scholar
• Fenson, L., Dale, P. S., Reznick, J. S., Thal, D., Bates, E., Hartung, J., et al. (1993). The MacArthur Communicative Development Inventories: User's guide and technical manual. San Diego, CA: Singular.
   Google Scholar
• Fey, M. E., Warren, S. F., Brady, N., Finestack, L. H., Bredin-Oja, S. L., Fairchild, M., et al. (2006). Early effects of responsivity education/prelinguistic milieu teaching for children with developmental delays and their parents. Journal of Speech, Language, and Hearing Research, 49, 526–547.
   PubMed Web of Science ®Google Scholar
• Fowler, A. (1990). Language abilities in children with Down syndrome: Evidence for a specific syntactic delay. In D. Cicchetti, & M. Beeghly (Eds.), Children with Down syndrome. Cambridge, England: Cambridge University Press.
   Google Scholar
• Gillham, B. (1990). First words in normal and Down syndrome children: a comparison of content and word-form categories. Child Language Teaching and Therapy, 6, 25–32.
   Google Scholar
• Hodapp, R. M., Ricci, L. A., Ly, T. M., & Fidler, D. J. (2003). The effects of the child with Down syndrome on maternal stress. British Journal of Developmental Psychology, 21, 137–151.
   Google Scholar
• Kumin, L. (2006). Speech intelligibility and childhood verbal apraxia in children with Down syndrome. Down Syndrome Research and Practice, 10, 10–22.
   PubMedGoogle Scholar
• Kumin, L., Councill, C., & Goodman, M. (1994). A longitudinal study of the emergence of phonemes in children with Down syndrome. Journal of Communication Disorders, 27, 265–275.
   PubMedGoogle Scholar
• Legerstee, M., Bowman, T. G., & Fels, S. (1992). People and objects affect the quality of vocalizations in infants with Down syndrome. Early Development and Parenting, 1, 149–156.
   Google Scholar
• Lynch, M. P., Oller, D. K., Steffens, M. L., Levine, S. L., Basinger, D. L., & Umbel, V. M. (1995). Development of speech-like vocalizations in infants with Down syndrome. American Journal on Mental Retardation, 100, 68–86.
   PubMedGoogle Scholar
• McGraw, K. O., & Wong, S. P. (1996). Forming inferences about some intraclass correlation coefficients. Psychological Methods, 1, 30–46.
   Web of Science ®Google Scholar
• Mervis, C. B., & Becerra, A. M. (2003). Lexical development and intervention. In J. A. Rondal, & S. Buckley (Eds.), Speech and language intervention in Down syndrome (pp. 63–85). London: Whurr.
   Google Scholar
• Miller, J. F. (1999). Profiles of language development in children with Down syndrome. In J. F. Miller, M. Leahy, & L. A. Leavitt (Eds.), Improving the communication of people with Down syndrome (pp. 11–39). Baltimore, MD: Brookes.
   Google Scholar
• Mosse, E. K., & Jarrold, C. (2011). Evidence for preserved novel word learning in Down syndrome suggests multiple routes to vocabulary acquisition. Journal of Speech, Language, and Hearing Research, 54, 1137–1152.
   PubMedGoogle Scholar
• Mundy, P., Sigman, M., Kasari, C., & Yirmiya, N. (1988). Nonverbal communication skills in Down syndrome children. Child Development, 59, 235–249.
   PubMed Web of Science ®Google Scholar
• Nathani, S., & Oller, D. (2001). Beyond ba-ba and gu-gu: Challenges and strategies in coding infant vocalizations. Behavior Research Methods, Instruments and Computers, 33, 321–330.
   PubMedGoogle Scholar
• Oliver, B., & Buckley, S. J. (1994). The language development of children with Down syndrome: First words to two-word phrases. Down Syndrome Research and Practice, 2, 71–75.
   Google Scholar
• Oller, D. K., Niyogi, P., Gray, S., Richards, J. A., Gilkerson, J., Xu, D., et al. (2010). Automated vocal analysis of naturalistic recordings from children with autism, language delay, and typical development. Proceedings of the National Academy of Sciences of the United States of America, 27, 13354–13359.
   Google Scholar
• Paul, R., & Jennings, P. (1992). Phonological behavior in toddlers with slow expressive language development. Journal of Speech and Hearing Research, 35, 99–107.
   PubMedGoogle Scholar
• Rescorla, L., & Ratner, N. B. (1996). Phonetic profiles of toddlers with specific expressive language impairment (SLI-E). Journal of Speech and Hearing Research, 39, 153–165.
   PubMedGoogle Scholar
• Robb, M., & Bleile, K. (1994). Consonant inventories of young children from 8 to 25 months. Clinical Linguistics and Phonetics, 8, 295–320.
   PubMed Web of Science ®Google Scholar
• Roberts, J., Long, S. H., Malkin, C., Barnes, E., Skinner, M., Hennon, E. A., et al. (2005). A comparison of phonological skills of boys with Fragile X syndrome and Down syndrome. Journal of Speech, Language, and Hearing Research, 48, 980–995.
   PubMed Web of Science ®Google Scholar
• Roberts, J. E., Stoel-Gammon, C., & Barnes, E. F. (2008). Phonological characteristics of children with Down syndrome or Fragile X syndrome. In Roberts, J. E., Chapman, R. S., & Warren, S. F. (Eds.), Speech and language development and intervention in Down syndrome and Fragile X syndrome (pp. 143–170). Baltimore, MD: Paul H. Brookes.
   Google Scholar
• Rondal, J. A. (1980). Verbal imitation by Down syndrome and nonretarded children. American Journal of Mental Deficiency, 85, 318–321.
   PubMedGoogle Scholar
• Rondal, J. A. (2009). Spoken language in persons with Down syndrome: A life-span perspective. International Journal of Early Childhood Special Education, 1, 138–163.
   Google Scholar
• Rosin, M., Swift, E., Bless, D., & Vetter, D. (1988). Communication profiles of adolescents with Down syndrome. Journal of Childhood Communication Disorders, 12, 49–64.
   Google Scholar
• Rupela, V., & Manjula, R. (2007). Phonotactic patterns in the speech of children with Down syndrome. Clinical Linguistics and Phonetics, 21, 605–622.
   PubMed Web of Science ®Google Scholar
• Schoen, E., Paul, R., & Chawarska, K. (2011). Phonology and vocal behavior in toddlers with autism spectrum disorders. Autism Research, 4, 1–12.
   PubMedGoogle Scholar
• Smith, B. L., & Oller, D. (1981). A comparative study of pre-meaningful vocalizations produced by normally developing and Down’s syndrome infants. Journal of Speech and Hearing Disorders, 46, 46–51.
   PubMedGoogle Scholar
• Smith, B. L., & Stoel-Gammon, C. (1983). A longitudinal study of the development of stop consonant production in normal and Down’s syndrome children. Journal of Speech and Hearing Disorders, 48, 114–118.
   PubMedGoogle Scholar
• Smith, B. L., & Stoel-Gammon, C. (1996). A quantitative analysis of the reduplicated and variegated babbling in vocalizations by Down syndrome infants. Clinical Linguistics and Phonetics, 10, 119–130.
   Web of Science ®Google Scholar
• Steffens, M. L., Oller, D. K., Lynch, M., & Urbano, R. C. (1992). Vocal development in infants with Down syndrome and infants who are developing normally. American Journal on Mental Retardation, 97, 235–246.
   PubMedGoogle Scholar
• Stoel-Gammon, C. (1985). Phonetic inventories, 15-24 months: A longitudinal study. Journal of Speech and Hearing Research, 28, 505–512.
   PubMedGoogle Scholar
• Stoel-Gammon, C. (1989). Prespeech and early speech development of two late talkers. First Language, 9, 207–223.
   Google Scholar
• Stoel-Gammon, C. (1997). Phonological development in Down syndrome. Mental Retardation and Developmental Disabilities Research Reviews, 3, 300–306.
   Google Scholar
• Stoel-Gammon, C. (1998). The role of babbling and phonology in early linguistic development. In A. M. Wetherby, S. F. Warren, & J. Reichle (Eds.), Transitions in prelinguistic communication: Preintentional to intentional and presymbolic to symbolic (pp. 87–110). Baltimore, MD: Paul H. Brookes.
   Google Scholar
• Stoel-Gammon, C. (2001a). Down syndrome phonology: Developmental patterns and intervention strategies. Down Syndrome: Research and Practice, 7, 93–100.
   PubMedGoogle Scholar
• Stoel-Gammon, C. (2001b). Transcribing the speech of young children. Topics in Language Disorders, 21, 12–21.
   Web of Science ®Google Scholar
• Stoel-Gammon, C. (2002). Intervocalic consonants in the speech of typically developing children: Emergence and early use. Clinical Linguistics and Phonetics, 16, 155–168.
   PubMed Web of Science ®Google Scholar
• Tapp, J. (2006). ProcoderDV (Version 2.1.7). Nashville, TN: Vanderbilt Kennedy Center.
   Google Scholar
• Warren, S. F., Fey, M. E., Finestack, L. H., Brady, N. C., Bredin-Oja, S. L., & Fleming, K. K. (2008). A randomized trial of longitudinal effects of low-intensity responsivity education/prelinguistic milieu teaching. Journal of Speech, Language, and Hearing Research, 51, 451–470.
   PubMedGoogle Scholar
• Werker, J. F., & Curtin, S. (2005). PRIMIR: A developmental framework of infant speech processing. Language Learning and Development, 1, 197–234.
   Google Scholar
• Wetherby, A., & Prizant, B. (1993). Communication and Symbolic Behavior Scales (Normed ed.). Baltimore, MD: Paul H. Brookes.
   Google Scholar
• Whitehurst, G. J., Smith, M., Fischel, J. E., Arnold, D. S., & Lonigan, C. J. (1991). The continuity of babble and speech in children with specific expressive language delay. Journal of Speech and Hearing Research, 34, 1121–1129.
   PubMedGoogle Scholar
• Williams, C. A., Peters, S. U., & Calculator, S. N. (2009). Facts about Angelman syndrome. (7th ed). Aurora, IL (USA): Angelman Syndrome Foundation, http://www.angelman.org
   Google Scholar
• Yoder, P. J., & Warren, S. F. (2002). Effects of prelinguistic milieu teaching and parent responsivity education on dyads involving children with intellectual disabilities. Journal of Speech, Language, and Hearing Research, 45, 1158–1174.
   PubMed Web of Science ®Google Scholar