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Procedural and Declarative Memory Brain Systems in Developmental Language Disorder (DLD)
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In: Brain Lang (2020)
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A Real-time Mechanism Underlying Lexical Deficits in Developmental Language Disorder: Between-Word Inhibition
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In: Cognition (2019)
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Early Literacy Predictors and Second-Grade Outcomes in Children Who Are Hard of Hearing
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An Introduction to the Outcomes of Children with Hearing Loss Study
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Longitudinal Speech Perception and Language Performance in Pediatric Cochlear Implant Users: the Effect of Age at Implantation
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The Influence of Hearing Aids on the Speech and Language Development of Children With Hearing Loss
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The process of spoken word recognition in the face of signal degradation
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Abnormal Subcortical Components of the Corticostriatal System in Young Adults with DLI: A Combined Structural MRI and DTI Study
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Grammar Predicts Procedural Learning and Consolidation Deficits in Children with Specific Language Impairment
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Hedenius, Martina; Persson, Jonas; Tremblay, Antoine; Adi-Japha, Esther; Veríssimo, João; Dye, Cristina D.; Alm, Per; Jennische, Margareta; Tomblin, J. Bruce; Ullman, Michael T.. - 2011
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Abstract:
The Procedural Deficit Hypothesis (PDH) posits that Specific Language Impairment (SLI) can be largely explained by abnormalities of brain structures that subserve procedural memory. The PDH predicts impairments of procedural memory itself, and that such impairments underlie the grammatical deficits observed in the disorder. Previous studies have indeed reported procedural learning impairments in SLI, and have found that these are associated with grammatical difficulties. The present study extends this research by examining the consolidation and longer-term procedural sequence learning in children with SLI. The Alternating Serial Reaction Time (ASRT) task was given to children with SLI and typically-developing (TD) children in an initial learning session and an average of three days later to test for consolidation and longer-term learning. Although both groups showed evidence of initial sequence learning, only the TD children showed clear signs of consolidation, even though the two groups did not differ in longer-term learning. When the children were re-categorized on the basis of grammar deficits rather than broader language deficits, a clearer pattern emerged. Whereas both the grammar impaired and normal grammar groups showed evidence of initial sequence learning, only those with normal grammar showed consolidation and longer-term learning. Indeed, the grammar-impaired group appeared to lose any sequence knowledge gained during the initial testing session. These findings held even when controlling for vocabulary or a broad non-grammatical language measure, neither of which were associated with procedural memory. When grammar was examined as a continuous variable over all children, the same relationships between procedural memory and grammar, but not vocabulary or the broader language measure, were observed. Overall, the findings support and further specify the PDH. They suggest that consolidation and longer-term procedural learning are impaired in SLI, but that these impairments are specifically tied to the grammatical deficits in the disorder. The possibility that consolidation and longer-term learning are problematic in the disorder suggests a locus of potential study for therapeutic approaches. In sum, this study clarifies our understanding of the underlying deficits in SLI, and suggests avenues for further research.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3191257 https://doi.org/10.1016/j.ridd.2011.07.026 http://www.ncbi.nlm.nih.gov/pubmed/21840165
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Individual differences in online spoken word recognition: Implications for SLI
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Electrophysiological Correlates of Rapid Auditory and Linguistic Processing in Adolescents with Specific Language Impairment
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Language and Reading Abilities of Children with Autism Spectrum Disorders and Specific Language Impairment and Their First-Degree Relatives
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Short arms and talking eggs: Why we should no longer abide the nativist-empiricist debate
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Speech Intelligibility of Pediatric Cochlear Implant Recipients With 7 Years of Device Experience
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A Comparison of Language Achievement in Children With Cochlear Implants and Children Using Hearing Aids
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The Production of English Inflectional Morphology, Speech Production and Listening Performance in Children with Cochlear Implants
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