Ties between lexical and grammatical development: evidence from early-talkers

Case studies are presented for two linguistically precious children (early-talkers) aged 1;9 and 1;5, one of whom represents a striking dissociation between vocabulary size and mean length of utterance. Each early-talker is compared to controls in the same language stage; 10 in Early State I (mean age 1;7) and 10 in Stage II (mean age 2;3). Data are explored to determine if the dissociation is best characterized as one between grammar and semantics, or a difference in cognitive style. Results showed that the child who used mostly single words produced high proportions of predicates and bound and closed class grammatical morphemes, providing no evidence of a dissociation between grammar and semantics. Results also failed to support a clear contrast between analytic and holistic processing, although partial support was found for some predictions based on cognitive style. A unifying account is proposed that considers differences in auditory short term memory, a factor which could affect the size of the linguistic unit that children can store, manipulate, and/or retrieve at a particular point in development.

[1]  R. Paul.  Profiles of Toddlers with Slow Expressive Language Development. , 1991 .

[2]  E. Bates,et al.  Early lexical development in children with focal brain injury , 1991, Brain and Language.

[3]  D. Thal,et al.  Phonological and lexical development in normal and late-talking toddlers , 1995, Applied Psycholinguistics.

[4]  Alan G. Kamhi,et al.  Syntactic and Semantic Aspects of the Utterances of Language-Impaired Children: The Same Can Be Less. , 1984 .

[5]  Steven Pinker,et al.  Language learnability and language development , 1985 .

[6]  Noam Chomsky.  Knowledge of language: its nature, origin, and use , 1988 .

[7]  V. Marchman,et al.  From rote learning to system building: acquiring verb morphology in children and connectionist nets , 1993, Cognition.

[8]  A. Peters.  LANGUAGE LEARNING STRATEGIES: DOES THE WHOLE EQUAL THE SUM OF THE PARTS? , 1977 .

[9]  U Bellugi,et al.  Language and cognition in two children with Williams syndrome. , 1989, Journal of speech and hearing research.

[10]  D. Loeb,et al.  Language characteristics of a linguistically precocious child , 1990 .

[11]  Richard L. Schiefelbusch,et al.  Causes and Effects in Communication and Language Intervention , 1991 .

[12]  Elizabeth Bates,et al.  From first words to grammar in children with focal brain injury , 1997 .

[13]  Dianne Horgan,et al.  Rate of language acquisition and noun emphasis , 1981 .

[14]  What’s Normal? Specific Language Impairment in an Individual Differences Perspective , 1991 .

[15]  Elizabeth Bates,et al.  Books Recieved , 2022, CL.

[16]  Lynn Nadel,et al.  The Psychobiology of Down syndrome , 1988 .

[17]  K. Nelson.  Narratives from the crib , 1990 .

[18]  Philip S. Dale,et al.  Validity of Stanford-Binet IV with linguistically precocious toddlers☆ , 1990 .

[19]  E. Bates,et al.  Language and gesture in late talkers. , 1988, Journal of speech and hearing research.

[20]  L. Rescorla,et al.  The Language Development Survey: a screening tool for delayed language in toddlers. , 1989, The Journal of speech and hearing disorders.

[21]  U Bellugi,et al.  Evidence from two genetic syndromes for a dissociation between verbal and visual-spatial short-term memory. , 1994, Journal of clinical and experimental neuropsychology.

[22]  D. Ingram,et al.  Morphology before syntax: a case study from language acquisition , 1985, Journal of Child Language.

[23]  J. Fodor.  The Modularity of mind. An essay on faculty psychology , 1986 .

[24]  V. Marchman,et al.  U-shaped learning and frequency effects in a multi-layered perception: Implications for child language acquisition , 1991, Cognition.

[25]  Jon F. Miller,et al.  Assessing language production in children , 1980 .

[26]  L. Rescorla,et al.  Outcome of toddlers with specific expressive language delay , 1990, Applied Psycholinguistics.

[27]  Fred Plum,et al.  Language, communication, and the brain. , 1988, Research publications - Association for Research in Nervous and Mental Disease.

[28]  D. Slobin.  The Crosslinguistic Study of Language Acquisition , 1987 .

[29]  E. Bates,et al.  Continuity in lexical and morphological development: a test of the critical mass hypothesis , 1994, Journal of Child Language.

[30]  P. Dale,et al.  The validity of a parent report measure of vocabulary and syntax at 24 months. , 1991, Journal of speech and hearing research.

[31]  J. Reznick,et al.  The validity of a parent report instrument of child language at twenty months , 1989, Journal of Child Language.

[32]  C. Ferguson,et al.  Phonological development from babbling to speech: Common tendencies and individual differences , 1986, Applied Psycholinguistics.

[33]  Ann M. Peters,et al.  The Units of Language Acquisition , 1983 .

[34]  R. Brown,et al.  A First Language , 1973 .

[35]  E. Bates,et al.  Language comprehension in ape and child. , 1993, Monographs of the Society for Research in Child Development.

[36]  Stacy Tobias,et al.  Relationships between language and gesture in normally developing and late-talking toddlers. , 1994, Journal of speech and hearing research.

[37]  Carolyn B. Mervis,et al.  Acquisition of the plural morpheme : a case study , 1991 .

[38]  Ursula Bellugi,et al.  Contrasting profiles of language development in children with williams and down syndromes , 1997 .

[39]  D. Thal,et al.  Language and gesture in late talkers: a 1-year follow-up. , 1991, Journal of speech and hearing research.