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21
Abnormal Subcortical Components of the Corticostriatal System in Young Adults with DLI: A Combined Structural MRI and DTI Study
Abstract: Developmental Language Impairment (DLI) is a neurodevelopmental disorder affecting 12% to 14% of the school-age children in the United States. While substantial studies have shown a wide range of linguistic and non-linguistic difficulty in individuals with DLI, very little is known about the neuroanatomical mechanisms underlying this disorder. In the current study, we examined the subcortical components of the corticostriatal system in young adults with DLI, including the caudate nucleus, the putamen, the nucleus accumbens, the globus pallidus, and the thalamus. Additionally, the four cerebral lobes and the hippocampus were also comprised for an exploratory analysis. We used conventional magnetic resonance imaging (MRI) to measure regional brain volumes, as well as diffusion tensor imaging (DTI) to assess water diffusion anisotropy as quantified by fractional anisotropy (FA). Two groups of participants, one with DLI (n=12) and the other without ( n=12), were recruited from a prior behavioral study, and all were matched on age, gender, and handedness. Volumetric analyses revealed region-specific abnormalities in individuals with DLI, showing pathological enlargement bilaterally in the putamen and the nucleus accumbens, and unilaterally in the right globus pallidus after the intracranial volumes were controlled. Regarding the DTI findings, the DLI group showed decreased FA values in the globus pallidus and the thalamus but these significant differences disappeared after controlling for the whole-brain FA value, indicating that microstructural abnormality is diffuse and affects other regions of the brain. Taken together, these results suggest region-specific corticostriatal abnormalities in DLI at the macrostructural level, but corticostriatal abnormalities at the microstructural level may be a part of a diffuse pattern of brain development. Future work is suggested to investigate the relationship between corticostriatal connectivity and individual differences in language development.
Keyword: Article
URL: https://doi.org/10.1016/j.neuropsychologia.2013.07.011
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3816105
http://www.ncbi.nlm.nih.gov/pubmed/23896446
BASE
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22
Associations of Prenatal Nicotine Exposure and the Dopamine Related Genes ANKK1 and DRD2 to Verbal Language
Eicher, John D.; Powers, Natalie R.; Cho, Kelly. - : Public Library of Science, 2013
BASE
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23
Growing Up With a Cochlear Implant: Education, Vocation, and Affiliation
In: Journal of deaf studies and deaf education. - Cary, NC : Oxford Univ. Press 17 (2012) 4, 483
OLC Linguistik
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24
Reinforcement learning in young adults with developmental language impairment
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 123 (2012) 3, 154-163
BLLDB
OLC Linguistik
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25
Exploring the comorbidity of attention-deficit, hyperactivity disorder and language, speech, and reading disorders
Tomblin, J. Bruce (Hrsg.). - Hagerstown, Md. : Lippincott Williams & Wilkins, 2012
UB Frankfurt Linguistik
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26
The Aromatase Gene CYP19A1: Several Genetic and Functional Lines of Evidence Supporting a Role in Reading, Speech and Language
BASE
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27
Grammar Predicts Procedural Learning and Consolidation Deficits in Children with Specific Language Impairment
BASE
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28
Electrophysiological correlates of rapid auditory and linguistic processing in adolescents with specific language impairment
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 115 (2010) 3, 162-181
BLLDB
OLC Linguistik
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29
Sequential expectations: the role of prediction-based learning in language
In: Topics in cognitive science. - Hoboken, NJ [u.a.] : Wiley 2 (2010) 1, 138-153
BLLDB
OLC Linguistik
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30
Sequential Expectations: The Role of Prediction-Based Learning in Language
In: Topics in cognitive science. - Hoboken, NJ [u.a.] : Wiley 2 (2010) 1, 138-153
OLC Linguistik
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31
Individual differences in online spoken word recognition: Implications for SLI
BASE
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32
On-Line Individual Differences in Statistical Learning Predict Language Processing
Misyak, Jennifer B.; Christiansen, Morten H.; Tomblin, J. Bruce. - : Frontiers Research Foundation, 2010
BASE
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33
Electrophysiological Correlates of Rapid Auditory and Linguistic Processing in Adolescents with Specific Language Impairment
BASE
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34
Sequential expectations : the role of prediction-based learning in language
Misyak, Jennifer B.; Christiansen, Morten H.; Tomblin, J. Bruce. - : Wiley-Blackwell Publishing, Inc., 2010
BASE
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35
Language Features in a mother and daughter of a chromosome 7;13 translocation involving FOXP2
In: Journal of speech, language, and hearing research. - Rockville, Md. : American Speech-Language-Hearing Association 52 (2009) 5, 1157-1174
BLLDB
OLC Linguistik
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36
The handbook of child language disorders
Edwards, Jan; Fletcher, Paul; Hook, Pamela E.. - New York : Psychology Press, 2009
BLLDB
UB Frankfurt Linguistik
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37
Childern with specific language impairment
In: The Cambridge handbook of child language (Cambridge, 2009), p. 417-432
MPI für Psycholinguistik
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38
Children with specific language impairment
In: The Cambridge handbook of child language. - Cambridge [u.a.] : Cambridge Univ. Press (2009), 417-431
BLLDB
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39
Seeing the world through a third eye: developmental systems theory looks beyond the nativist-empiricist debate : [authors' response]
In: Child development perspectives. - Hoboken, NJ : Wiley 3 (2009) 2, 103-105
BLLDB
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40
Short arms and talking eggs: why we should no longer abide the nativist-empiricist debate : [main article]
In: Child development perspectives. - Hoboken, NJ : Wiley 3 (2009) 2, 79-87
BLLDB
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