Cited by 399Down syndrome and intellectual disability researchLanguage Development and DisordersHearing Impairment and Communication

Language Characteristics of Individuals With Down Syndrome

Open access
Martin, Gary E., Klusek, Jessica, Estigarribia, Bruno, Roberts, Joanne E.·2009·Topics in Language Disorders

Abstract

On average, language and communication characteristics of individuals with Down syndrome (the most common genetic cause of intellectual disability) follow a consistent profile. Despite considerable individual variability, receptive language is typically stronger than expressive language, with particular challenges in phonology and syntax. We review the literature on language and literacy skills of individuals with Down syndrome, with emphasis on the areas of phonology, vocabulary, syntax, and pragmatics. We begin by describing the hearing, oral-motor, cognitive, social, and prelinguistic and early nonverbal communication characteristics of individuals with Down syndrome. We conclude with a discussion of clinical implications and research directions.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1097/tld.0b013e3181a71fe1

Cites

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The DS neurodevelopmental phenotype encompasses deficits in executive function, working memory, motor coordination, and linguistic processing that emerge within the first postnatal months and influence academic, occupational, and adaptive functioning trajectories throughout the lifespan.

    “This neurodevelopmental phenotype encompasses deficits in executive function, working memory, motor coordination, and linguistic processing - impairments that emerge within the first postnatal months and profoundly influence academic, occupational, and adaptive functioning trajectories throughout the lifespan (2-5).”

    From Molecular and cellular processes disrupted in the early postnatal Down syndrome prefrontal cortex (2026) · cites this paper as [4]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

No references could be resolved yet.

Research works printed but not linked: 118

  1. Abbeduto L Murphy MM Cawthon SW Richmond EK Weissman MD Karadottir S 2003 Receptive language skills of adolescents and young adults with Down or fragile X syndrome American Journal on Mental Retardation 108 149 160 12691594
  2. Abbeduto L Murphy MM Richmond E Amman A Beth P Weissman MD 2006 Collaboration in referential communication: Comparison of youth with Down syndrome or fragile X syndrome American Journal on Mental Retardation 111 170 183 16597184
  3. Abbeduto L Murphy MM Kover ST Karadottir S Amman A Bruno L 2008 Signaling noncomprehension of language: A comparison of fragile X syndrome and Down syndrome American Journal on Mental Retardation 113 214 230 18407723 PMC5610960
  4. Antonarakis SE Epstein C 2006 The challenge of Down syndrome Trends in Molecular Medicine 12 473 479 16935027
  5. Barnes E Roberts J Long SH Martin GE Berni MC Mandulak KC Sideris J Phonological accuracy and intelligibility in connected speech of boys with fragile X syndrome or Down syndrome Journal of Speech, Language, and Hearing Research in press PMC2719827 19641081
  6. Barnes EF Roberts JE Mirrett PL Sideris J Misenheimer J 2006 A comparison of oral motor structure and function in young males with fragile X syndrome and Down syndrome Journal of Speech, Language, and Hearing Research 49 903 917 16908884
  7. Beeghly M Weiss-Perry B Cicchetti D 1990 Beyond sensorimotor functioning: Early communicative and play development of children with Down syndrome Cicchetti D Beeghly M Children with Down syndrome: A developmental perspective 329 368 New York Cambridge University Press
  8. Bergland M Eriksson M 2000 Communicative development in Swedish children 16-28 months old: The Swedish Early Communicative Inventory--words and sentences Scandinavian Journal of Psychology 41 133 144 10870432
  9. 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 11218101
  10. Bleile K Schwartz I 1984 Three perspectives on the speech of children with Down Syndrome Journal of Communication Disorders 17 87 94 6233333
  11. Boudreau D Chapman R 2000 The relationship between event representation and linguistic skill in narratives of children and adolescents with Down syndrome Journal of Speech, Language, and Hearing Research 43 1146 1159 11063236
  12. Boudreau D 2002 Literacy skills in children and adolescents with Down syndrome Reading and Writing: An Interdisciplinary Journal 15 497 525
  13. Boudreau DM Hedberg NL 1999 A comparison of early literacy skills in children with specific language impairment and their typically developing peers American Journal of Speech-Language Pathology 8 249 260
  14. Buckley S 1985 Attaining basic educational skills: Reading, writing and number Lane D Stratford B Current approaches to Down’s syndrome 315 343 New York Praeger Press
  15. Byrne A MacDonald J Buckley S 2002 Reading language and memory skills: a comparative longitudinal study of children with Down syndrome and their mainstream peers British Journal of Educational Psychology 72 513 529 12495564
  16. Cardoso-Martins C Michalick MF Pollo TC 2002 In sensitivity to rhyme a developmental precursor to sensitivity to phoneme?: Evidence from individuals with Down syndrome Reading and Writing: An Interdisciplinary Journal 15 439 454
  17. Caselli M Vicari S Longobardi E Lami L Pizzoli C Stella G 1998 Gestures and words in early development of children with Down syndrome Journal of Speech, Language, and Hearing Research 41 1125 1135 9771634
  18. Caselli MC Monaco L Trasciani M Vicari S 2008 Language in Italian children with Down syndrome and with specific language impairment Neuropsychology 22 27 35 18211153
  19. Cardoso-Martins C Michalick MF Pollo TC 2002 In sensitivity to rhyme a developmental precursor to sensitivity to phoneme?: Evidence from individuals with Down syndrome Reading and Writing: An Interdisciplinary Journal 15 439 454
  20. Centers for Disease Control and Prevention 2006 Improved national prevalence estimates for 18 selected major birth defects – United States, 1999 – 2001 Morbidity and Mortality Weekly Report 54 1301 1305 16397457
  21. Chapman RS 2003 Language and communication in individuals with Down syndrome Glidden L Abbeduto L Language and communication in mental retardation 27 1 35 San Diego Academic Press
  22. Chapman RS Hesketh LJ 2000 Behavioral phenotype of individuals with Down syndrome Mental Retardation and Developmental Disabilities Research 6 84 95 10899801
  23. Chapman RS Hesketh LJ Kistler DJ 2002 Predicting longitudinal change in language production and comprehension in individuals with Down syndrome: Hierarchical linear modeling Journal of Speech, Language, and Hearing Research 45 902 915 12381048
  24. Chapman RS Schwartz SE Kay-Raining Bird E 1991 Language skills of children and adolescents with Down Syndrome: I. Comprehension Journal of Speech, Language, and Hearing Research 34 1106 1120 1836243
  25. Chapman RS Seung HK Schwartz SE 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 9712133
  26. Cholmain CN 1994 Working on phonology with young children with Down syndrome Journal of Clinical Speech and Language Studies 1 14 35
  27. Coggins T Carpenter R Owings N 1983 Examining early intentional communication in Down’s syndrome and nonretarded children British Journal of Disorders of Communication 18 98 106 6226307
  28. Collacott RA Cooper SA Branford D McGrother C 1998 Behaviour phenotype for Down’s syndrome British Journal of Psychiatry 172 85 89 9534839
  29. Cossu G Rossini F Marshall JC 1993 When reading is acquired but phoneme awareness is not: A study of literacy on Down’s syndrome Cognition 46 129 138 8432093
  30. Crais ER Roy VP Free K 2006 Parents’ and professionals’ perceptions of the implementation of family-centered practices in child assessments American Journal of Speech-Language Pathology 15 365 377 17102147
  31. Cupples L Iacono T 2000 Phonological awareness and oral reading skill in children with Down syndrome Journal of Speech, Language, and Hearing Research 43 595 608 10877431
  32. Cupples L Iacono T 2002 The efficacy of “whole word” versus “analytic” reading instruction for children with Down syndrome Reading and Writing: An Interdisciplinary Journal 15 549 574
  33. Dawson J Stout C Eyer J 2003 Structured Photographic Expressive Language Test Third Edition DeKalb, IL Janelle Publications
  34. Dodd B 1972 Comparison of babbling patterns in normal and Down syndrome infants Journal of Mental Deficiency Research 16 35 40 4277414
  35. Dodd B 1976 A comparison of the phonological systems of mental age matched, normal, severely subnormal and Down’s syndrome children British Journal of Disorders of Communication 11 27 42 132957
  36. Dodd B McCormack P Woodyatt G 1994 Evaluation of an intervention program: Relation between children’s phonology and parents’ communicative behavior American Journal on Mental Retardation 98 632 645 8192909
  37. Dodd B Thompson L 2001 Speech disorder in children with Down’s syndrome Journal of Intellectual Disabilities Research 45 4 308 316 11489052
  38. Dykens EM Hodapp RM Evans DW 1994 Profiles and development of adaptive behavior in children with Down syndrome American Journal on Mental Retardation 98 580 587 8192903
  39. Dykens EM Hodapp RM Evans DW 2006 Profiles and development of adaptive behavior in children with Down syndrome Down Syndrome Research and Practice 9 45 50 16869374
  40. Eadie PA Fey ME Douglas JM Parsons CL 2002 Profiles of grammatical morphology and sentence imitation in children with specific language impairment and Down syndrome Journal of Speech, Language, and Hearing Research 45 720 732 12199402
  41. Fey M Warren S Brady N Finestack LH Bredin-Oja SL Fairchild M 2006 Early effects of prelinguistic milieu teaching and responsivity education for children with developmental delays and their parents Journal of Speech, Language, and Hearing Research 49 526 547 16787894
  42. Fidler DL 2005 The emerging Down syndrome behavioral phenotype in early childhood: Implications for practice Infants and Young Children 18 83 103 PMC4516035 26224992
  43. Fidler DJ Most DE Guiberson MM 2005 Neuropsychological correlates of word identification in Down syndrome Research in Developmental Disabilities 26 487 501 15890496
  44. Fidler DJ Hepburn S Rogers S 2006 Early learning and adaptive behaviour in toddlers with Down syndrome: Evidence for an emerging behavioural phenotype? Down Syndrome Research and Practice 9 37 44 16869373
  45. Fletcher H Buckley S 2002 Phonological awareness in children with Down syndrome Down Syndrome Research and Practice 8 11 18 11915432
  46. Fowler AE Doherty BJ Boyton L 1995 The basis of reading skills in young adults with Down syndrome Nadel L Rosethal D Down syndrome: Living and learning in the community New York Wiley-Liss
  47. Freeman SFN Kasari C 2002 Characteristics and qualities of the play dates of children with Down syndrome: Emerging or true friendships? American Journal on Mental Retardation 107 16 31 11806747
  48. Ghaziuddin M Tsai LY Ghaziuddin N 1992 Autism in Down’s syndrome: Presentation and diagnosis Journal of Intellectual Disabilities Research 36 449 456 1458002
  49. Glenn S Cunningham C 2005 Performance of young people with Down syndrome on the Leiter-R and British Picture Vocabulary Scales Journal of Intellectual Disability Research 9 239 244 15816810
  50. Hassold T Sherman S 2002 The origin and etiology of trisomy 21 Cohen WI Nadel L Madnick ME Down syndrome: Visions for the 21st century 295 301 New York Wiley-Liss
  51. Hatcher PJ Hulme C Miles JN Carroll JM Hatcher J Gibbs S 2006 Efficacy of small group reading intervention for beginning reader with reading-delay: A randomized controlled trial Journal of Child Psychiatry 47 820 826 16898996
  52. Hatcher PJ Hulme C Snowling MJ 2004 Explicit phoneme training combined with phonic reading instruction helps young children at risk of reading failure Journal of Child Psychology and Psychiatry 45 338 358 14982247
  53. Hepburn S Philofsky A Fidler DJ Rogers S 2008 Autism symptoms in toddlers with Down syndrome: a descriptive study Journal of Applied Research in Intellectual Disabilities 21 48 57 PMC4522941 26246797
  54. Hesketh LJ Chapman RS 1998 Verb use by individuals with Down syndrome American Journal on Mental Retardation 103 288 304 9833659
  55. Hick RF Botting N Conti-Ramsden G 2005 Short-term memory and vocabulary development in children with Down syndrome and children with specific language impairment Developmental Medicine and Child Neurology 47 532 538 16108453
  56. Hodapp RM Fidler DJ 1999 Special education and genetics: Connections for the 21st century Journal of Special Education 33 130 137
  57. Hodson BW 2006 Identifying phonological patterns and projecting remediation cycles: Expediting intelligibility gains of a 7 year old Australian child International Journal of Speech-Language Pathology 8 257 264
  58. Iverson J Longobardi E Caseli MC 2003 Relationship between gestures and words in children with Down’s syndrome and typically developing children in the early stages of communicative development International Journal of Language and Communication Disorders 38 179 197 12745936
  59. Jarrold C Baddeley AD Hewes AK 1999 Genetically dissociated components of working memory: evidence from Downs and Williams syndrome Neuropsychologia 37 637 651 10390025
  60. Jarrold C Baddeley AD 2001 Short-term memory in Down syndrome: Applying the working memory model Down Syndrome Research and Practice 7 17 23 11706808
  61. Jarrold C Baddeley AD Phillips C 1999 Down syndrome and the phonological loop: the evidence for, and the importance of, a specific verbal short-term memory deficit Down Syndrome Research and Practice 6 61 71 11276981
  62. Jarrold C Baddeley AD Phillips C 2007 Long-term memory for verbal and visual information in Down syndrome and Williams syndrome: Performance on the doors and people test Cortex 43 233 247 17405669
  63. Joffe V Varlokosta S 2007 Patterns of syntactic development in children with Williams syndrome and Down’s syndrome: Evidence from passives and wh-questions Clinical Linguistics and Phonetics 21 705 727 17701757
  64. Kay-Raining Bird E Chapman RS Schwartz SE 2004 Fast mapping of words and story recall by individuals with Down syndrome Journal of Speech, Language, and Hearing Research 47 6 1286 1300 15842011
  65. Kay-Raining Bird E Cleave P McConnell L 2000 Reading and phonological awareness in children with Down syndrome: A longitudinal study American Journal of Speech-Language Pathology 9 319 990
  66. Kay-Raining Bird E Cleave P White D Pike H Helmkay A 2008 Written and oral narratives of children and adolescents with Down syndrome Journal of Speech, Language, and Hearing Research 51 436 450 18367688
  67. Kennedy EJ Flynn MC 2003 Training phonological awareness skills in children with Down syndrome Research in Developmental Disabilities 24 44 57 12553967
  68. Kent L Evans J Paul M Sharp M 1999 Comorbidity of autistic spectrum disorders in children with Down syndrome Developmental Medicine and Child Neurology 41 153 158 10210247
  69. Kumin L 1994 Intelligibility of speech in children with Down syndrome in natural settings: parents’ perspective Perceptual and Motor Skills 78 307 313 8177677
  70. Kumin L 2006 Speech intelligibility and childhood verbal apraxia in children with Down syndrome Down Syndrome Research and Practice 10 10 22 16869369
  71. Kumin L Adams J 2000 Developmental apraxia of speech and intelligibility in children with Down syndrome Down Syndrome Quarterly 5 1 6
  72. Laws G 1998 The use of nonword repetition as a test of phonological memory in children with Down syndrome Journal of Child Psychology and Psychiatry and Allied Disciplines 39 1119 1130 9844982
  73. Laws G 2002 Working memory in children and adolescents with Down syndrome: Evidence from a colour memory experiment Journal of Child Psychology and Psychiatry 43 353 364 11944877
  74. Laws G 2004 Contributions of phonological memory, language comprehension and hearing to the expressive language of adolescents and young adults with Down syndrome Journal of Child Psychology and Psychiatry and Allied Disciplines 45 1085 1095 15257665
  75. Laws G Bishop DVM 2003 A comparison of language abilities in adolescents with Down syndrome and children with specific language impairment Journal of Speech, Language, and Hearing Research 46 1324 1339 14700358
  76. Laws G Gunn D 2002 Relationships between reading, phonological skills and language development in individuals with Down syndrome: A five year follow-up study Reading and Writing: An Interdisciplinary Journal 15 527 548
  77. Laws G Gunn D 2004 Phonological memory as a predictor of language comprehension in Down syndrome: A five-year follow-up study Journal of Child Psychology and Psychiatry 45 326 337 14982246
  78. Lynch MP Oller DK Steffens ML Levine SL Bassinger DL Umbel V 1995 Onset of speech-like vocalizations in infants with Down syndrome American Journal on Mental Retardation 100 68 86 7546639
  79. Mervis C Robinson B 2000 Expressive vocabulary ability of toddlers with Williams syndrome or Down syndrome: A comparison Developmental Neuropsychology 17 111 126 10916578
  80. Miles S Chapman RS 2002 Narrative content as described by individuals with Down syndrome and typically developing children Journal of Speech, Language and Hearing Research 45 175 189 14748647
  81. Miles S Chapman R Sindberg H 2006 Sampling context affects MLU in the language of adolescents with Down syndrome Journal of Speech, Language, and Hearing Research 49 325 337 16671847
  82. Millar DC Light JC Schlosser RW 2006 The impact of augmentative and alternative communication intervention on the speech production of individuals with developmental disabilities: A research review Journal of Speech, Language, and Hearing Research 49 248 264 16671842
  83. Miller JF 1995 Individual differences in vocabulary acquisition in children with Down syndrome Epstein C Hassold T Lott I Nadel L Patterson D Etiology and pathogenesis of Down syndrome: Proceedings of the international Down syndrome research conference 93 103 New York Wiley-Liss 8545458
  84. Miolo G Chapman RS Sindberg HA 2005 Sentence comprehension in adolescents with Down syndrome and typically developing children: Role of sentence voice, visual context, and auditory-verbal short-term memory Journal of Speech, Language, and Hearing Research 48 172 188 15938064
  85. Moore DG Oates JM Hobson RP Goodwin J 1988 Cognitive and social factors in the development of infants with Down syndrome Down Syndrome Research and Practice 8 43 52 12407968
  86. Mundy P Kasari C Sigman M Ruskin E 1995 Nonverbal communication and early language acquisition in children with Down syndrome and in normally developing children Journal of Speech, Language, and Hearing Research 38 157 167 7537345
  87. Mundy P Sigman M Kasari C Yirmiya N 1988 Nonverbal communication skills in Down syndrome children Child Development 59 235 249 2963734
  88. Nelson LD Orme D Osann K Lott IT 2001 Neurological changes and emotional functioning in adults with Down syndrome Journal of Intellectual Disability Research 45 450 456 11679050
  89. Paul R 2007 Language disorders from infancy through adolescence: Assessment and intervention 3 Philadelphia Elsevier
  90. Paul R Murray C Clancy K Andrews D 1997 Reading and metaphonological outcomes in late talkers Journal of Speech, Language, and Hearing Research 40 1037 1047 9328875
  91. Prasher VP Chung MC 1996 Causes of age-related decline in adaptive behavior of adults with Down syndrome: Differential diagnoses of dementia American Journal on Mental Retardation 101 175 183 8883671
  92. Price JR Roberts JE Hennon EA Berni MC Anderson KL Sideris J 2008 Syntactic complexity during conversation of boys with fragile X syndrome and Down syndrome American Journal on Mental Retardation 112 1 17 18230852
  93. Price JR Roberts JE Vandergrift N Martin G 2007 Language comprehension in boys with fragile X syndrome and boys with Down syndrome Journal of Intellectual Disability Research 51 318 326 17326813
  94. Roberts J Hunter L Gravel J Rosenthal R Berman S Haggard M 2004 Otitis media, hearing loss, and language learning: Controversies and current research Developmental and Behavioral Pediatrics 25 1 13 15083134
  95. Roberts JE Long SH Malkin C Barnes E Skinner M Hennon EA 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 16411789
  96. Roberts JE Martin GE Moskowitz L Harris AA Foreman J Nelson L 2007 Discourse skills of boys with fragile X syndrome in comparison to boys with Down syndrome Journal of Speech, Language, and Hearing Research 50 475 492 17463242
  97. Roberts JE Price JR Barnes EF Nelson L Burchinal M Hennon E 2007 Receptive vocabulary, expressive vocabulary, and speech production of boys with fragile X syndrome and Down syndrome American Journal on Mental Retardation 112 177 193 17542655
  98. Roizen NJ Patterson D 2003 Down’s syndrome Lancet 361 1281 1289 12699967
  99. Roizen NJ Wolters C Nicol T Blondis TA 1993 Hearing loss in children with Down syndrome Journal of Pediatrics 23 9 12 8320600
  100. Rondal JA Comblain A 2002 Language in aging persons with Down syndrome Down Syndrome Research and Practice 8 1 9 11915431
  101. Rosin M Swift E Bless D Vetter D 1988 Communication profiles in adolescents with Down syndrome Journal of Childhood Communication Disorders 12 49 64
  102. Rupela V Manjula R 2007 Phonotactic patterns in the speech of children with Down syndrome Clinical Linguistics and Phonetics 21 605 622 17653970
  103. Scarborough HS Dobrich W 1994 On the efficacy of reading to preschoolers Developmental Review 14 245 302
  104. Shott SR Joseph A Heithaus D 2001 Hearing loss in children with Down syndrome International Journal of Pediatric Otorhinolaryngology 61 199 205 11700189
  105. Smith BL Oller DK 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 6451768
  106. Smith BL 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 6225906
  107. Stoel-Gammon C 1997 Phonological development in Down syndrome Mental Retardation and Developmental Disabilities Research Review 3 300 306
  108. Storch SA Whitehurst GJ 2002 Oral language and code-related precursors to reading: Evidence from a longitudinal structural model Developmental Psychology 38 934 947 12428705
  109. Tannock R 1988 Mothers’ directiveness in their interactions with their children with and without Down syndrome American Journal on Mental Retardation 93 154 165 2971380
  110. Urv TK Zigman WB Silverman W 2008 Maladaptive behaviors related to dementia status in adults with Down syndrome American Journal on Mental Retardation 113 73 86 18240877
  111. Van Bysterveldt AK Gillon GT Moran C 2006 Enhancing phonological awareness and letter knowledge in preschool children with Down syndrome International Journal of Disability, Development, and Education 53 301 329
  112. Vicari S Bellucci S Carlesimo GA 2005 Visual and spatial long-term memory: differential pattern of impairments in Williams and Down syndromes Developmental Medicine and Child Neurology 47 305 311 15892372
  113. Verucci L Menghini D Vicari S 2006 Reading skills and phonological awareness acquisition in Down syndrome Journal of Intellectual Disability Research 50 477 491 16774633
  114. Wang PP Bellugi U 1994 Evidence from two genetic syndromes for a dissociation between verbal and visual-spatial short-term memory Journal of Clinical and Experimental Neuropsychology 16 317 322 8021317
  115. Williams KT 2007 Expressive Vocabulary Test Second Edition Circle Pines, MN American Guidance Service
  116. Wishart JG Johnston FH 1990 The effects of experience on attribution of a stereotyped personality to children with Down’s syndrome Journal on Mental Deficiency Research 34 409 420 2148352
  117. Yoder P Warren S 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 1175 12546485
  118. Zigman WB Lott IT 2007 Alzheimer’s disease in Down syndrome: Neurobiology and risk Mental Retardation and Developmental Disabilities Research Reviews 13 237 246 17910085

Cited by

Sorted by citations

Authors
Martin, G. E., Klusek, J., Estigarribia, B., & Roberts, J. E.
Affiliations
University of North Carolina at Chapel Hill (US)
Venue
Topics in Language Disorders
Published
2009-04
Volume
29
Issue
2
Pages
112-132
ISSN
0271-8294 (ISSN-L)
OpenAlex
W2019067852
Cited by
399
References
0
Citations by year
2026: 17 · 2025: 27 · 2024: 26 · 2023: 26 · 2022: 35 · 2021: 31 · 2020: 43 · 2019: 32 · 2018: 38 · 2017: 25 · 2016: 25 · 2015: 12 · 2014: 23 · 2013: 10 · 2012: 15
FWCI
9.41
Type
journal article
Language
en
Open access
Locations
  • Topics in Language Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Scholar Commons (University of South Carolina) (submittedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD038819, R01HD044935, T32HD040127)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Down syndrome and intellectual disability research
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
  • Social Sciences › Psychology › Developmental and Educational Psychology › Hearing Impairment and Communication
Keywords
Down syndrome, linguistic features, receptive language, expressive language, phonology, syntax, vocabulary, pragmatics, literacy, intellectual disability, oral motor skills, prelinguistic communication, nonverbal communication

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review