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Language Development in
Adolescents with Down Syndrome or
Mental Retardation of Unknown Cause

Investigators:Robin S. Chapman, Ph.D., P.I.
Julia L. Evans, Ph.D., Co-P.I.

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The Language Development Project for Adolescents with Down Syndrome or Mental Retardation of Unknown Cause was a federally-funded investigation of language development, language learning and memory (RO1 HD23353, cofunded by National Institutes of Child Health and Human Development and the National Down Syndrome Society, that is now complete.

Publications of Project Work:

Abbeduto, L. & Chapman, R.S., (2005). Language development in Down syndrome
and Fragile X syndrome: Current research and implications for theory and
practice. In P. Fletcher & M. Garman (Eds.), Topics in Language Acquisition
Research. vol 4: Developmental theory and language disorders
. Amsterdam,
NL: John Benjamins. Boudreau, D.M. & Chapman, R.S. (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.
Chapman, R.S. (2000). Children’s language learning: An interactionist perspective.
Journal of Child Psychology and Psychiatry, 41, 33-54.
Chapman, R.S. (2003). Language and communication in individuals with Down syndrome.
(pp. 1-34) In L. Abbeduto (Ed.,), International Review of Research in Mental Retardation:
Language and Communication, vol. 27. Academic Press.
Chapman, R.S. (1999). Language and cognitive development in children and
adolescents with Down syndrome. In J.F. Miller, L.A. Leavitt, & M. Leddy
(Eds.), Communication development in children with Down syndrome.
Baltimore: Brookes Publishing Co.
Chapman, R.S., (1997). Language development in adolescents with Down
syndrome. In S. Pueschel & M. Sustrova (Eds.), Adolescents with Down
syndrome. Baltimore: Brookes Publishing Co.
Chapman, R.S. (1997). Language development in children and adolescents with
Down syndrome. Mental Retardation and Developmental Disabilities
Research Review, 3,
307-312.
Chapman, R.S. (1992). Child Talk: Processes in Language Acquisition and
Disorders. St. Louis: Mosby.
Chapman, R.S., & Hesketh, L.J. (2000). Behavioral phenotype of individuals
with Down syndrome. Mental Retardation and Developmental Disability
Research Reviews, 6,
84-95.
Chapman, R.S. & Hesketh, L.J. (2001). Language, cognition, and short-term memory
in individuals with Down syndrome. Down Syndrome Research and Practice, 7, 1-7.
Chapman, R.S., Hesketh, L.J., & Kistler, D. (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.
Chapman, R.S., Kay-Raining Bird, E. & Schwartz, S.E. (1990). Fast mapping of
novel words in event contexts by children with Down syndrome. Journal
of Speech and Hearing Disorders, 55,
761-770.
Chapman, R.S., Schwartz, S.E., & Kay-Raining Bird, E. (1991). Language skills
of children and adolescents with Down syndrome:I Comprehension.
Journal of Speech and Hearing Research, 34, 1106-1120.
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.
Chapman, R.S., Seung, H-K., Schwartz, S.E. & Kay-Raining Bird, E. (2000). Predicting
language development in children and adolescents with Down syndrome:
The role of comprehension. Journal of Speech, Language, and Hearing Research, 43,
340-351.
Chapman, R.S., Sindberg, H., Bridge, C., Gigstead, K. & Hesketh, L.J. (2006).
Effect of memory support and elicited production on fast mapping of new words
by adolescents with Down syndrome. Journal of Speech, Language, and
Hearing Research, 49,
3-15.
Hesketh, L.J. & Chapman, R.S. (1998). Verb use by individuals with Down
syndrome. American Journal on Mental Retardation, 103, 288-304.
Johnson-Glenberg, M.C. & Chapman, R.S. (2004). Predictors of parent-child language
during novel task play: A comparison between children who are typically developing
and individuals with Down syndrome. Journal of Intellectual Disabilities Research.
Kay-Raining Bird, E., & Chapman, R.S. (1994). Sequential recall in individuals with
Down syndrome. Journal of Speech and Hearing Research, 37, 1369-1380.
Kay-Raining Bird, E., Chapman, R.S., & Schwartz, S.E. (2004). Fast mapping of words
and story recall by children with Down syndrome. Journal of Speech, Language,
and Hearing Research
.
Miles, S. & Chapman, R.S. (2002). Narrative content as described by individuals with
Down syndrome and typically developing children. Journal of Speech, Language, and
Hearing Research, 45,
175-189.
Miles, S., Sindberg, H., Bridge, C. & Chapman, R.S. (in press). Discourse context and transcription
method affect MLU in sampling language of adolescents and young adults with
Down syndrome. Journal of Speech, Language, and Hearing Research.
Miolo, G., Chapman, R.S., & Sindberg, H-K. (2005). Sentence comprehension in adolescents
with Down syndrome and typically developing chldren: Role of sentence voice, visual
context, and auditory-verbal short-term memory. Journal of Speech, Language, and
Hearing Research, 48,
172-188.
Seung, H-K. & Chapman, R.S. (2000). Digit span in individuals with Down syndrome
and typically developing children: Temporal aspects. Journal of Speech, Language,
and Hearing Research, 43,
609-620.
Seung, H.K., & Chapman, R. S. (2003). The effect of story presentation rates on story retelling
by individuals with Down syndrome. Applied Psycholinguistics, 24, 601-618.
Seung, H-K. & Chapman, R.S. (2004) Sentence memory in individuals with Down syndrome
and typically developing children. Journal of Intellectual Disability Research, 48, 160-171.
Thordardottir, E., Chapman, R., & Wagner, L. (2002). Complex sentence production by adolescents
with Down syndrome. Applied Psycholinguistics, 24, 163-183.


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