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Sentence Comprehension Deficits of Specific Language Impairment (Montgomery et al., 2016) ...
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Sentence Comprehension Deficits of Specific Language Impairment (Montgomery et al., 2016) ...
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Neural patterns elicited by lexical processing in adolescents with specific language impairment: support for the procedural deficit hypothesis?
In: J Neurodev Disord (2022)
Abstract: BACKGROUND: Deficits in procedural memory have been proposed to account for the language deficits in specific language impairment (SLI). A key aspect of the procedural deficit hypothesis (PDH) account of SLI is that declarative memory is intact and functions as a compensatory mechanism in the acquisition of language in individuals with SLI. The current study examined the neural correlates of lexical-phonological and lexical-semantic processing with respect to these predictions in a group of adolescents with SLI with procedural memory impairment and a group of chronologically age-matched (CA) normal controls. METHODS: Participants completed tasks designed to measure procedural and declarative memory and two ERP tasks designed to assess lexical-semantic and lexical-phonological processing in the auditory modality. Procedural memory was assessed using a statistical learning task. Lexical-semantic processing was assessed using a sentence judgment task modulating semantic congruency and lexical-phonological processing was assessed using a word/nonword decision task modulating word frequency. Behavioral performance on the tasks, mean amplitude of the cortical response, and animated topographs were examined. RESULTS: Performance on the statistical word-learning task was at chance for the adolescents with SLI, whereas declarative memory was no different from the CA controls. Behavioral accuracy on the lexical-semantic task was the same for the adolescents with SLI and CA controls but accuracy on the lexical-phonological task was significantly poorer for the adolescents with SLI as compared to the CA controls. An N400 component was elicited in response to semantic congruency on the lexical-semantic task for both groups but differences were noted in both the location and time course of the cortical response for the SLI and CA groups. An N400 component was elicited by word frequency on the lexical-phonological task for the CA controls not for the adolescents with SLI. In contrast, post hoc analysis revealed a cortical response based on imageability for the adolescents with SLI, but not CA controls. Statistical word learning was significantly correlated with speed of processing on the lexical decision task for the CA controls but not for the adolescents with SLI. In contrast, statistical word learning ability was not correlated with the modulation of the N400 on either task for either group. CONCLUSION: The behavioral data suggests intact semantic conceptual knowledge, but impaired lexical phonological processing for the adolescents with SLI, consistent with the PDH. The pattern of cortical activation in response to semantic congruency and word frequency suggests, however, that the processing of lexical-semantic and lexical-phonological information by adolescents with a history of SLI may be supported by both overlapping and nonoverlapping neural generators to those of CA controls, and a greater reliance on declarative memory strategies. Taken together, the findings from this study suggest that the underlying representations of words in the lexicons of adolescents with a history of SLI may differ qualitatively from those of their typical peers, but these differences may only be evident when behavioral data and neural cortical patterns of activation are examined together.
Keyword: Research
URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8934509/
http://www.ncbi.nlm.nih.gov/pubmed/35305572
https://doi.org/10.1186/s11689-022-09419-z
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Cognitive Processes Related to Memory Capacity Explain Nearly All of the Variance in Language Test Performance in School-Age Children With and Without Developmental Language Disorder
In: Front Psychol (2021)
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A New Memory Perspective on the Sentence Comprehension Deficits of School-Age Children With Developmental Language Disorder: Implications for Theory, Assessment, and Intervention
In: Lang Speech Hear Serv Sch (2021)
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Consistency of a Nonword Repetition Task to Discriminate Children with and without Developmental Language Disorder in Catalan–Spanish and European Portuguese Speaking Children
In: Children (Basel) (2021)
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Consistency of a nonword repetition task to discriminate children with and without developmental language disorder in Catalan-Spanish and European Portuguese speaking children
Ahufinger, Nadia; Berglund-Barraza, Amy; Cruz-Santos, Anabela. - : Multidisciplinary Digital Publishing Institute (MDPI), 2021
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Consistency of a Nonword Repetition Task to Discriminate Children with and without Developmental Language Disorder in Catalan-Spanish and European Portuguese Speaking Children
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Statistical word learning in Catalan-Spanish and English-speaking children with and without developmental language disorder
Ahufinger Sanclemente, Nadia; Ferinu Sanz, Laura; Sanz Torrent, Mònica. - : International Journal of Language and Communication Disorders, 2021
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Consistency of a nonword repetition task to discriminate children with and without developmental language disorder in catalan-spanish and european portuguese speaking children
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Verbal working memory capacity in DLD (Montgomery et al., 2019) ...
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Verbal working memory capacity in DLD (Montgomery et al., 2019) ...
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Cognitive Predictors of Sentence Comprehension in Children with and without Developmental Language Disorder: Implications for Assessment and Treatment
In: Int J Speech Lang Pathol (2019)
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A Comparison of the Storage-Only Deficit and Joint Mechanism Deficit Hypotheses of the Verbal Working Memory Storage Capacity Limitation of Children With Developmental Language Disorder
Montgomery, James W.; Gillam, Ronald B.; Evans, Julia L.. - : American Speech-Language-Hearing Association, 2019
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Word Frequency Is Associated With Cognitive Effort During Verbal Working Memory: A Functional Near Infrared Spectroscopy (fNIRS) Study
Berglund-Barraza, Amy; Tian, Fenghua; Basak, Chandramalika. - : Frontiers Media S.A., 2019
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A Comparison of the Storage-Only Deficit and Joint Mechanism Deficit Hypotheses of the Verbal Working Memory Storage Capacity Limitation of Children with Developmental Language Disorder
In: Communicative Disorders and Deaf Education Faculty Publications (2019)
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Cognitive processing and comprehension in developmental language disorder (Montgomery et al., 2018) ...
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Cognitive processing and comprehension in developmental language disorder (Montgomery et al., 2018) ...
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Lexical leverage: category knowledge boosts real-time novel word recognition in 2-year-olds.
In: Developmental science, vol 19, iss 6 (2016)
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Semantic structure in vocabulary knowledge interacts with lexical and sentence processing in infancy
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