Lexical Aspect and the Use of Verb Morphology by Children With Specific Language Impairment

Leonard, Laurence B.; Deevy, Patricia; Kurtz, Robert M.; Chorev, Laurie Krantz; Owen, Amanda J.; Polite, Elgustus J.; Elam, Diana; Finneran, Denise

doi:10.1044/1092-4388(2007/053)

Cited by 50 publications

(59 citation statements)

References 30 publications

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“…All of the children had been participants in studies conducted by the Child Language Laboratory at Purdue University. These studies involved experimental tasks that focused on the children’s grammatical, lexical, nonword repetition, or attention skills (Deevy, Wisman Weil, Leonard, & Goffman, 2010; Finneran, Francis, & Leonard, 2009; Leonard, Deevy et al, 2007; Leonard, Deevy, Wong, Stokes, & Fletcher, 2007). The spontaneous speech samples analyzed in this study were collected prior to administration of the experimental tasks to document the children’s mean length of utterance and determine whether their developmental level was appropriate for participation in the experiments.…”

Section: Methodsmentioning

confidence: 99%

Identifying risk for specific language impairment with narrow and global measures of grammar

Souto

Leonard

Deevy

2014

Clinical Linguistics & Phonetics

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In this study, we ask: (1) whether measures of the developmental level of the tense/agreement morphemes used by children have diagnostic value, as has been found for tense/agreement consistency; and (2) whether global measures of accuracy can be applied to children four and five years of age. The spontaneous speech samples of 112 four- and five-year-olds with SLI or typical language were analyzed. Group differences were seen for the developmental level of the children’s tense/agreement morpheme use, but diagnostic accuracy did not reach acceptable levels, in contrast to a measure of tense/agreement consistency applied to the same data. A global measure of grammatical accuracy was found to be useful, but more appropriate for screening children already viewed as at risk for language difficulties. These findings suggest that an extended period of tense/agreement inconsistency may be more central to SLI than alternative measures related to tense/agreement morphology.

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Section: Methodsmentioning

confidence: 99%

Identifying risk for specific language impairment with narrow and global measures of grammar

Souto

Leonard

Deevy

2014

Clinical Linguistics & Phonetics

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“…Initial studies of children with LI were motivated by models of LI and related these to deficits in the acquisition of language knowledge (Johnston and Kamhi 1984). More recently, studies have focused on a range of domains including pragmatics and/or social cognition (Rapin and Allen 1983, Johnston 1988, Leslie and Frith 1988, lexical semantics (Schwartz and Leonard 1985), and morphosyntax (Curtiss and Tallal 1991, Gopnik and Crago 1991, Leonard 1992. Some of these studies have shown that in younger children the performance of language in agematched controls is similar to that of the children with LI, suggesting that the language-learning system is essentially intact in LI and that delay rather than deviancy best characterizes LI in the early years.…”

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confidence: 99%

Neurological and MRI profiles of children with developmental language impairment

Trauner

Wulfeck

Tallal

et al. 2000

Develop Med Child Neuro

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Children with developmental language impairment (LI) are defined partly by the absence of other identifiable neurological diagnoses. Such children are generally considered to be neurologically normal, but no systematic studies of neurological function have been reported. We obtained detailed medical histories and conducted neurological examinations for 72 children aged 5 to 14 years with LI and 82 typically developing age‐matched control children. All the children took a standardized test of language, and those who were at least 8 years old and were willing to have brain MRI scans (35 children with LI and 27 control children) had scans. Analysis of developmental milestones from the medical histories revealed that children with LI were not only significantly later in speaking, but also mildly but significantly delayed in motor milestones, particularly walking. On neurological examination, abnormalities were found in 70% of the children with LI and only 22% of the control children. The most common abnormalities in the LI group included obligatory synkinesis, fine motor impairments, and hyperreflexia. The children with LI with the most abnormal neurological findings had the lowest language scores. Finally, 12 of 35 children with LI had abnormalities on their MRI scan, while none of the 27 control children had abnormal scans. Abnormal findings included ventricular enlargement (in five), central volume loss (in three), and white matter abnormalities (in four). These findings suggest that developmental LI is not an isolated finding but is indicative of more widespread nervous system dysfunction. Children with LI may need more comprehensive intervention programs than language therapy alone, depending on their other areas of dysfunction. Early identification of such problems may allow for more successful remediation.

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“…Phonological working memory allows one to temporarily store verbal information so that it can be cognitively manipulated for language processing (Adams & Gathercole, 1995;Gathercole & Baddeley, 1993). However, it may also function to support language development (Leonard et al, 2007). For if, as suggested by Leonard et al, a child is unable to retain phonological information in his working memory for a sufficient period of time, then he may have difficulty forming the word's phonological representation.…”

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confidence: 99%

Age of acquisition and repetition priming effects on picture naming of children who do and do not stutter

Anderson

2008

Journal of Fluency Disorders

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The effects of age of acquisition and repetition priming on picture naming latencies and errors were studied in 22 children who stutter (CWS) and 22 children who do not stutter (CWNS) between the ages of 3;1 and 5;7. Children participated in a computerized picture naming task where they named pictures of both early and late acquired (AoA) words in two consecutive stages. Findings revealed that all children's picture naming latencies and errors were reduced following repetition priming and in response to early AoA words relative to late AoA words. AoA and repetition priming effects were similar for children in both talker groups, with one exception. Namely, CWS benefitted significantly more, in terms of error reduction, than CWNS from repetition priming for late AoA words. In addition, CWNS exhibited a significant, positive association between linguistic speed and measures of vocabulary, but CWS did not. These findings were taken to suggest that the (a) semanticphonological connections of CWS may not be as strong as those of CWNS, and (b) lexical measures may not be sensitive enough to differentiate CWS from CWNS in lexically-related aspects of language production.

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Lexical Aspect and the Use of Verb Morphology by Children With Specific Language Impairment

Cited by 50 publications

References 30 publications

Identifying risk for specific language impairment with narrow and global measures of grammar

Identifying risk for specific language impairment with narrow and global measures of grammar

Neurological and MRI profiles of children with developmental language impairment

Age of acquisition and repetition priming effects on picture naming of children who do and do not stutter

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