scholarly journals Are Specific Language Impairment and Dyslexia Distinct Disorders?

2005 ◽  
Vol 48 (6) ◽  
pp. 1378-1396 ◽  
Author(s):  
Hugh W. Catts ◽  
Suzanne M. Adlof ◽  
Tiffany P. Hogan ◽  
Susan Ellis Weismer
Keyword(s):  
Language Impairment ◽  
Phonological Processing ◽  
Specific Language Impairment ◽  
Representative Sample ◽  
Developmental Disorders ◽  
Reading Development ◽  
Language Disorders ◽  
Nonword Repetition ◽  
Typical Development ◽  
Specific Language

Purpose: The purpose of this study was to determine whether specific language impairment (SLI) and dyslexia are distinct developmental disorders. Method: Study 1 investigated the overlap between SLI identified in kindergarten and dyslexia identified in 2nd, 4th, or 8th grades in a representative sample of 527 children. Study 2 examined phonological processing in a subsample of participants, including 21 children with dyslexia only, 43 children with SLI only, 18 children with SLI and dyslexia, and 165 children with typical language/reading development. Measures of phonological awareness and nonword repetition were considered. Results: Study 1 showed limited but statistically significant overlap between SLI and dyslexia. Study 2 found that children with dyslexia or a combination of dyslexia and SLI performed significantly less well on measures of phonological processing than did children with SLI only and those with typical development. Children with SLI only showed only mild deficits in phonological processing compared with typical children. Conclusions: These results support the view that SLI and dyslexia are distinct but potentially comorbid developmental language disorders. A deficit in phonological processing is closely associated with dyslexia but not with SLI when it occurs in the absence of dyslexia.

Clarifying the phonological processing account of nonword repetition

2006 ◽  
Vol 27 (4) ◽  
pp. 548-552 ◽  
Author(s):  
Judith A. Bowey
Keyword(s):  
Second Language ◽  
Individual Differences ◽  
Language Impairment ◽  
Phonological Processing ◽  
Specific Language Impairment ◽  
Vocabulary Acquisition ◽  
Strong Association ◽  
Nonword Repetition ◽  
Specific Language ◽  
Behavioral Marker

Individual differences in nonword repetition (NWR) show a particularly strong association with vocabulary acquisition for both first- (L1) and second-language (L2) learners, and they serve as a behavioral marker for specific language impairment (SLI) in children (Gathercole, 2006). However, this association is susceptible to alternative explanations.

Precautions regarding nonword repetition tasks

2006 ◽  
Vol 27 (4) ◽  
pp. 584-587 ◽  
Author(s):  
Bruce Smith
Keyword(s):  
Language Learning ◽  
Language Impairment ◽  
Phonological Processing ◽  
Specific Language Impairment ◽  
Developmental Disorders ◽  
Learning Ability ◽  
Nonword Repetition ◽  
Typically Developing ◽  
Adults And Children ◽  
Lexical Learning

Using nonword repetition tasks as an experimental approach with both adults and children has become quite common in the past 10 to 15 years for studying lexical learning and phonological processing (e.g., Bailey & Hahn, 2001; Gathercole, Frankish, Pickering & Peaker, 1998; Munson, Edwards, & Beckman, 2005; Storkel, 2001; Vitevich & Luce, 2005). In her Keynote, Gathercole (2006) indicates that “The ability to repeat multisyllabic nonwords…probably represents the most effective predictor of language learning ability that is currently known” and that “nonword repetition…may also hold the key to understanding developmental disorders of language learning.” Her Keynote reviews many of the findings from a variety of nonword repetition studies with typically developing children and children with specific language impairment (SLI) or other language-related disorders. Despite the substantial benefits and interesting findings that nonword test paradigms have provided in addressing different issues, a number of questions and precautions should be kept in mind regarding such approaches. Researchers who routinely employ these procedures are likely to be well aware of these issues, and in fact, Gathercole points out some of the limitations. For those less familiar with nonword repetition tasks, it seems advisable to reinforce the need for a certain amount of caution in evaluating the results of such approaches.

scholarly journals Do nonword repetition errors in children with specific language impairment reflect a weakness in an unidentified skill specific to nonword repetition or a deficit in simultaneous processing?

2006 ◽  
Vol 27 (4) ◽  
pp. 569-573 ◽  
Author(s):  
Klara Marton
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Cognitive Abilities ◽  
Alternative Hypothesis ◽  
Nonword Repetition ◽  
Specific Language ◽  
Speech Stimuli ◽  
Simultaneous Processing ◽  
Error Analyses ◽  
Double Deficit

This Commentary supports Gathercole's (2006) proposal on a double deficit in children with specific language impairment (SLI). The author suggests that these children have a limited phonological storage combined with a particular problem of processing novel speech stimuli. According to Gathercole, there are three areas of skill contributing to memory for nonwords: general cognitive abilities, phonological storage, and an unidentified skill specific to nonword repetition. The focus of this Commentary is to examine whether these children's nonword repetition performance is influenced by an unidentified skill or some other processes. An alternative hypothesis is that the nonword repetition errors observed in children with SLI are related to one of their main weaknesses, to their difficulties in simultaneous processing of information. Evidence for this argument comes from our recent studies: from error analyses data and from findings on nonword repetition with stimuli that included meaningful parts (monosyllabic real words).

scholarly journals Internalizing Behavioral Problems in Children with Specific Language Impairment

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
S Hassan ◽  
M Hegazi ◽  
H Ghandour ◽  
G Abdelrazek ◽  
D Elrefaie
Keyword(s):  
Behavioral Problems ◽  
Language Impairment ◽  
Specific Language Impairment ◽  
Pervasive Developmental Disorders ◽  
Developmental Disorders ◽  
Behavioral Problem ◽  
Internalizing Behavior ◽  
Therapeutic Interventions ◽  
Control Group ◽  
Specific Language

Abstract Background Specific language impairment (SLI) occurs when children present language maturation, at least 12 months behind their chronological age in the absence of sensory or intellectual deficits, pervasive developmental disorders, evident cerebral damage, and adequate social and emotional conditions. Internalizing behavior is actions that are taken out toward the self. The symptoms of internalizing behavior problems are depression, anxiety, somatic complaints and withdrawal. Aim of the Work This study aimed to investigate the presence of internalizing behavioral problems among SLI and their frequencies if present. Patients and methods We assessed SLI by PLS-4 and assessed internalizing behavioral problems with CBCL 1 1/5-5. Fifty children with SLI with an age range of (4-5 years old), divided into 2 subgroups according to the type of SLI, are compared to fifty children with normal language development with the same age and gender regarding internalizing behavioral problems. Results SLI group had more internalizing behavioral problems than control group and there is significant association between behavioral problems and the severity of language deficits. Conclusion the most frequently behavioral problem found in preschool (SLI) children were withdrawn and anxiety, which need therapeutic interventions to remediate them.

Children with specific language impairment. Laurence B. Leonard. Cambridge, MA: MIT Press, 1998. Pp. 339.

2002 ◽  
Vol 23 (2) ◽  
pp. 307-311
Author(s):  
Lynne E. Hewitt
Keyword(s):  
Language Development ◽  
Language Impairment ◽  
Specific Language Impairment ◽  
Language Disorders ◽  
Unknown Origin ◽  
Comprehensive Review ◽  
Specific Language ◽  
Sensory Deficits ◽  
Nature Versus Nurture ◽  
Linguistic Impairment

Laurence Leonard is one of the most prolific and well-respected researchers in the area of specific language impairment (SLI) in children, and he is well qualified to write a book surveying the topic. SLI is a disorder of unknown origin, which appears to have a genetic component, causing delays and disorders of language development in children of normal nonverbal intelligence with no significant medical, emotional, or sensory deficits. The primary purpose of this book is to provide a comprehensive review of research in the field of SLI, and Leonard has the minute knowledge necessary to succeed at the task. The coverage in the book reaches back to the earliest nineteenth-century descriptions of children who fit the profile and then moves forward quickly to the massive literature that has accumulated on the topic in the last 20 years. Following the introductory historical and definitional section, Leonard goes on to describe the nature of the linguistic impairment in SLI, including important cross-linguistic accounts and nonlinguistic cognitive issues. The book also covers hypotheses of causation, in a “nature versus nurture” section, and clinical issues of assessment and intervention. Part V, on theory, may be of most interest to psycholinguists who are not language disorders specialists. Overall, there is no doubt that this book is both an excellent introduction for those unfamiliar with SLI and a welcome overview and resource for experts. Leonard's knowledge is encyclopedic, his presentation erudite, and his grasp of detail unfailingly impressive.

Bilingualism as a kind of therapy?

2010 ◽  
Vol 31 (2) ◽  
pp. 297-303 ◽  
Author(s):  
Aafke Hulk ◽  
Sharon Unsworth
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Child Language ◽  
Language Disorders ◽  
Bilingual Children ◽  
Clinical Implications ◽  
Specific Language ◽  
Bilingual Development ◽  
Challenging Question

In her very interesting Keynote Article, Johanne Paradis gives a clear overview of recent research at the interface of bilingual development and child language disorders, and highlights its theoretical and clinical implications. She raises the challenging question of “whether bilingualism can be viewed as a kind of ‘therapy’ for SLI.” At first sight, this is perhaps a surprising question, because one of the predominant views in the literature is that bilingual children with specific language impairment (SLI) will exhibit difficulties and perhaps a “double delay.” It is this challenging question that we consider in more detail here.

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