This study examines the production of tense and aspect of Cypriot Greek adults diagnosed with Down Syndrome and children with typical language development. Despite the evidently low IQ scores, and comparatively lower MLU scores, the performance of Cypriot Greek adults with Down Syndrome with tense and aspect is almost at ceiling with 95.7% accuracy for tense and 97.2% for aspect. These results suggest that at least certain aspects of the Down Syndrome grammatical system (e.g. inflectional marking) can be (fully) acquired. It was observed that both groups have developed three coping strategies, when not using a verb as targeted or expected; they either (i) use an alternative feature value, (ii) omit the entire verb, or quite rarely (iii) omit the inflectional suffix. Inconsistencies in the results across different languages suggest that cross-linguistic differences potentially related to the inflectional system of each language might be responsible for the different realization of problematic performance. Keywords: Down Syndrome; language development; inflectional marking; tense; aspect
1976How children talk about what happened. Journal of Child Language 31. 167–189.
Bloom, L., Lifter, K. & J. Hafitz
1980Semantics of verbs and the development of verb inflection in child language. Language 56(2). 386–412.
Bol, G. & K. Kasparian
2009The production of pronouns in Dutch children with developmental language disorders: A comparison between children with SLI, hearing impairment, and Down’s syndrome. Clinical Phonetics and Linguistics 23(9). 631–646.
Caselli, M.C., L. Monaco, M. Trasciani & S. Vicari
2008Language in Italian children with Down syndrome and with specific language impairment. Neuropsychology 221. 27–35.
1995Language development in children and adolescents with Down syndrome. In Paul Fletcher & Brian MacWhinney (eds.), The handbook of child language, 664–689. Oxford, UK: Blackwell Publishers.
Chapman, R.S., H. Seung, S.E. Schwartz & E. Kay-Raining Bird
1998Language skills of children and adolescents with Down syndrome: II. Production deficits. Journal of Speech, Language, and Hearing Research 411. 861–873.
1994Working on phonology with young children with Down syndrome. Journal of Clinical Speech and Language Studies 11. 14–35.
2011Cypriot-Greek down syndrome: Their grammar and its interfaces. Doctoral Dissertation, University of British Columbia, Vancouver, B. C.
1976Aspect: An introduction to the study of verbal aspect and related problems. Cambridge, England: Cambridge University Press.
Delidaki, S. & S. Varlokosta
2003Testing the Aspect First Hypothesis: A preliminary investigation into the comprehension of tense in child Greek. ZAS Papers in Linguistics 291. 73–84.
1976A comparison of the phonological systems of mental age matched, normal, severely subnormal and Down’s syndrome children. The British Journal of Disorders of Communication 111. 27–42.
Eadie, P.A., M.E. Fey, J.M. Douglas & C.L. Parsons
2002Profiles of grammatical morphology and sentence imitation in children with specific language impairment and Down syndrome. Journal of Speech, Language, and Hearing Research 451. 720–732.
2006Down’s syndrome – Critical genes in a critical region. Nature 4411. 582–583.
1983The modularity of mind. Cambridge, MA: MIT Press.
Fowler, A., R. Gelman & L. Gleitman
1994The course of language learning in children with Down syndrome. In H. Tager-Flusberg (ed.), Constraints on language acquisition: Studies of atypical children, 91–141. Hillsdale, NJ: Lawrence Erlbaum Associates.
Galeote, M., P. Soto, E. Checa, A. Gomez & E. Lamela
2008The acquisition of productive vocabulary in Spanish children with Down syndrome. Journal of Intellectual and Developmental Disability 331. 292–302.
Galeote, M., P. Soto, E. Sebastián, E. Checa & C. Sanchez-Palacios
2013Early grammatical development in Spanish children with Down syndrome. Journal of Child Language 411. 111–131.
1988Neuropathology of Down syndrome. In L. Nadel (ed.), The psychobiology of Down syndrome, 269–289. Cambridge, MA: MIT Press.
2001Speech intelligibility in individuals with Down syndrome: A framework for targeting specific factors for assessment and treatment. Down Syndrome Quarterly 61. 1.
Kumin, L., C. Councill & M. Goodman
1994A longitudinal study of the emergence of phonemes in children with Down syndrome. Journal of Communication Disorders 271. 293–303.
Laws, G. & D.V.M. Bishop
2003A comparison of language abilities in adolescents with Down syndrome and children with specific language impairment. Journal of Speech, Language, and Hearing Research 461. 1324–1339.
2000Children with specific language impairment. Cambridge, MA: MIT Press.
1995The mind of a savant: Language learning and modularity. Oxford: Basil Blackwell.
2009The linguistic profile of Greek individuals with Down syndrome: Evidence from syntactic and morphological phenomena. Doctoral dissertation, University of Essex. Colchester, Essex.
Stathopoulou, N. & H. Clahsen
2010The perfective past tense in Greek adolescents with Down syndrome. Clinical Linguistics & Phonetics 241. 870–882.
(1981): Verbal grammar in early modern Greek child language. In P.S. Dale & D. Ingram (eds.), Child Language: An International Perspective, 45–57. Baltimore: University Park Press.
1980Phonological analysis of four Down’s syndrome children. Applied Psycholinguistics 11. 31–48.
1981Speech development of infants and children with Down syndrome. In J. Darby (ed.), Speech Evaluation in Medicine, 341–360. New York, NY: Grune & Stratton.
2001Down syndrome phonology: Developmental patterns and intervention strategies. Down Syndrome Research and Practice 71. 93–100.
2008Language-specific effects of task demands on the manifestation of specific language impairment: A comparison of English and Icelandic. Journal of Speech Language and Hearing Research 511. 922–937.
2006The linguistic profile of Down’s syndrome subjects: Evidence from Wh-movement construction. SOAS Working Papers in Linguistics, University College of London 141. 227–248.
1994Issues on modern Greek sentential complementation. Doctoral dissertation, University of Maryland. College Park, Maryland.
Varlokosta, S., A. Vainikka & B. Rohrbacher
1996Root infinitives without infinitives. Proceedings of the 20th Annual Boston University Conference on Language Development, Vols 1 and 21. 816–827.
Van Borsel, J.
1996Articulation in Down’s syndrome adolescents and adults. European Journal of Disorders of Communication 311. 415–444.
Vicari, S., M.C. Caselli & F. Tonucci
2000Asynchrony of lexical and morphosyntactic development in children with Down syndrome. Neuropsychologia 381. 634–644.
Vicari, S., M.C. Caselli, C. Gagliardi, F. Tonucci & V. Volterra
2002Language acquisition in special populations: A comparison between Down and Williams syndromes. Neuropsychologia 401. 2461–2470.
1994Optional infinitives, head movement and the economy of derivations. In David Lightfoot & Norbert Hornstein (eds.), Verb movement, 305–362. Cambridge, England: Cambridge University Press.
2003Tense and anaphora: Is there a tense-specific theory of coreference? In Andrew Barss (ed.), Anaphora: A reference guide, 140–171. Oxford: Blackwell.
Cited by 5 other publications
Christodoulou, Christiana & Kleanthes K. Grohmann
2018. From First Steps to Full Acquisition: Comprehension of Subjunctive Clauses in Bilectal Children With Down Syndrome and Typical Language Development. Frontiers in Communication 3
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2023. Copula Omission in Down Syndrome. Language Learning and Development 19:1 ► pp. 49 ff.
Katsarou, Dimitra & Georgia Andreou
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Loveall, Susan J., Marie Moore Channell, Leonard Abbeduto & Frances A. Conners
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2023. Subject-verb agreement inflection in Arabic-speaking individuals with Down syndrome. Clinical Linguistics & Phonetics► pp. 1 ff.
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