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Title Fiber Pathways for Language in the Developing Brain: A Diffusion Tensor Imaging (DTI) Study
Publication Date
Degree MS
Discipline/Department Psychology
Degree Level thesis
University/Publisher Florida International University
Abstract The present study characterized two fiber pathways important for language, the superior longitudinal fasciculus/arcuate fasciculus (SLF/AF) and the frontal aslant tract (FAT), and related these tracts to speech, language, and literacy skill in children five to eight years old. We used Diffusion Tensor Imaging (DTI) to characterize the fiber pathways and administered several language assessments. The FAT was identified for the first time in children. Results showed no age-related change in integrity of the FAT, but did show age-related change in the left (but not right) SLF/AF. Moreover, only the integrity of the right FAT was related to phonology but not audiovisual speech perception, articulation, language, or literacy. Both the left and right SLF/AF related to language measures, specifically receptive and expressive language, and language content. These findings are important for understanding the neurobiology of language in the developing brain, and can be incorporated within contemporary dorsal-ventral-motor models for language.
Subjects/Keywords Language; Development; Diffusion Tensor Imaging; White Matter; Fiber Pathways; Biological Psychology; Child Psychology; Cognitive Neuroscience; Developmental Neuroscience; Developmental Psychology; Systems Neuroscience
Contributors Anthony Steven Dick; Lorraine Bahrick; Robert Lickliter
Country of Publication us
Record ID oai:digitalcommons.fiu.edu:etd-2330
Repository fiu
Date Retrieved
Date Indexed 2018-08-10
Created Date 2014-03-24 07:00:00

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