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Lexical segmentation and vocabulary growth in early language acquisition*

Published online by Cambridge University Press:  26 September 2008

Kim Plunkett
Kim Plunkett*
Affiliation:
University of Oxford
*
Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK.
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Abstract

The identification of appropriate lexical segmentations of the speech signal constitutes a problem for the language learner and the child language researcher alike. Articulatory precision and fluency criteria for identifying formulaic expressions, sub-lexical forms and target lexemes in linguistic productions are defined and applied to the analysis of two Danish children's language development between the ages of 1;0 and 2;0. The results of this analysis are compared to the results of applying standard distributional and frequency criteria in the tabulation of mean length of utterance and vocabulary profiles for both standard and nonstandard lexical segmentations. It is argued that although the two methods yield converging profiles of development during the latter part of the period studied, articulatory precision and fluency criteria offer a more powerful tool for identifying alternative segmentation strategies in early language acquisition. Profiles of vocabulary development for these two children suggest that the solution to the segmentation problem may be an important trigger for their vocabulary spurts.

Type
Articles
Information
Journal of Child Language , Volume 20 , Issue 1 , February 1993 , pp. 43 - 60
Copyright
Copyright © Cambridge University Press 1993

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Footnotes

[*]

I would like to thank Judith Goodman for advice and encouragement during the writing of several drafts of the manuscript and also Elizabeth Bates, Virginia Marchman, Ann Peters and Donna Thal for detailed comments on earlier drafts.

References

REFERENCES

Bates, E., Bretherton, I. & Snyder, L. (1988). From first words to grammar: individual differences and dissociable mechanisms. Cambridge: C.U.P.Google Scholar
Bloom, L. M. (1973). One word at a time: the use of single word utterances before syntax. The Hague: Mouton.Google Scholar
Brown, R. (1973). A first language: the early stages. London: Allen & Unwin.CrossRefGoogle Scholar
Fernald, A. (1989). Intonation and communicative intent in mother's speech to infants: is the melody the message? Child Development 60, 1497–510.CrossRefGoogle ScholarPubMed
Fernald, A., Taeschner, T., Dunn, J., Papousek, M., Boysson-Bardies, B. de & Fukui, I. (1989). A cross-language study of prosodic modifications in mothers' and fathers' speech to preverbal infants. Journal of Child Language 16, 477–501.CrossRefGoogle ScholarPubMed
Hampson, J. & Nelson, K. (1990). The relation of maternal language to variation in rate and style of language acquisition. Unpublished manuscript.Google Scholar
Hickey, T. (1990). Identifying formulas in first language acquisition: an application to Irish. Paper presented to the Fifth International Congress for the Study of Child Language, Budapest, Hungary.Google Scholar
Lindblom, B. (1985). Phonetic universals in vowel Systems. In Ohala, J. J. (eds), Experimental phonology. San Francisco: Academic Press.Google Scholar
MacWhinney, B. (1978). The acquisition of morphophonology. Monographs of the Society for Research in Child Development 43 (174).CrossRefGoogle Scholar
MacWhinney, B. (1991). The CHILDES Project. Hillsdale, NJ: Erlbaum.Google Scholar
MacWhinney, B. & Snow, C. (1985). The Child Language Data Exchange System. Journal of Child Language 12, 271–98.CrossRefGoogle ScholarPubMed
MacWhinney, B. & Snow, C. (1990). The Child Language Data Exchange System: an update. Journal of Child Language 17, 457–72.CrossRefGoogle ScholarPubMed
McShane, J. (1979). The development of naming. Linguistics 17, 879–905.Google Scholar
Peters, A. M. (1983). The units of language acquisition. New York: C.U.P.Google Scholar
Plunkett, K. (1986). Learning strategies in two Danish children's language development. Scandinavian Journal of Psychology 27, 64–73.CrossRefGoogle Scholar
Shute, B. & Wheldall, K. (1989). Pitch alterations in British motherese: some preliminary acoustic data. Journal of Child Language 16, 503–12.CrossRefGoogle ScholarPubMed
Snow, C. E. (1972). Mothers' speech to children learning language. Child Development 43, 549–65.CrossRefGoogle Scholar
Snow, C. E. (1986). Conversations with children. In Fletcher, P. & Garman, M. (eds), Language acquisition: studies in first language development. Second edition. Cambridge: C.U.P.Google Scholar
Uzgiris, I. C. & Hunt, J. M. (1975). Assessment in infancy. Chicago: University of Illinois Press.Google Scholar