Neural Correlates of Developmental Speech and Language Disorders: Evidence from Neuroimaging.
AuthorLiégeois, F; Mayes, A; Morgan, A
Source TitleCurrent Developmental Disorders Reports
PublisherSpringer Science and Business Media LLC
University of Melbourne Author/sMorgan, Angela
AffiliationAudiology and Speech Pathology
Document TypeJournal Article
CitationsLiégeois, F., Mayes, A. & Morgan, A. (2014). Neural Correlates of Developmental Speech and Language Disorders: Evidence from Neuroimaging.. Curr Dev Disord Rep, 1 (3), pp.215-227. https://doi.org/10.1007/s40474-014-0019-1.
Access StatusAccess this item via the Open Access location
Open Access URLhttps://europepmc.org/articles/PMC4104164?pdf=render
Open Access at PMChttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC4104164
Disorders of speech and language arise out of a complex interaction of genetic, environmental, and neural factors. Little is understood about the neural bases of these disorders. Here we systematically reviewed neuroimaging findings in Speech disorders (SD) and Language disorders (LD) over the last five years (2008-2013; 10 articles). In participants with SD, structural and functional anomalies in the left supramarginal gyrus suggest a possible deficit in sensory feedback or integration. In LD, cortical and subcortical anomalies were reported in a widespread language network, with little consistency across studies except in the superior temporal gyri. In summary, both functional and structural anomalies are associated with LD and SD, including greater activity and volumes relative to controls. The variability in neuroimaging approach and heterogeneity within and across participant samples restricts our full understanding of the neurobiology of these conditions- reducing the potential for devising novel interventions targeted at the underlying pathology.
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