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Structural and functional correlates for language efficiency in auditory word processing

Authors: Jung, JeYoung; Kim, Sunmi; Cho, Hyesuk; Nam, Kichun;

Structural and functional correlates for language efficiency in auditory word processing

Abstract

© 2017 Jung et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This study aims to provide convergent understanding of the neural basis of auditory word processing efficiency using a multimodal imaging. We investigated the structural and functional correlates of word processing efficiency in healthy individuals. We acquired two structural imaging (T1-weighted imaging and diffusion tensor imaging) and functional magnetic resonance imaging (fMRI) during auditory word processing (phonological and semantic tasks). Our results showed that better phonological performance was predicted by the greater thalamus activity. In contrary, better semantic performance was associated with the less activation in the left posterior middle temporal gyrus (pMTG), supporting the neural efficiency hypothesis that better task performance requires less brain activation. Furthermore, our network analysis revealed the semantic network including the left anterior temporal lobe (ATL), dorsolateral prefrontal cortex (DLPFC) and pMTG was correlated with the semantic efficiency. Especially, this network acted as a neural efficient manner during auditory word processing. Structurally, DLPFC and cingulum contributed to the word processing efficiency. Also, the parietal cortex showed a significate association with the word processing efficiency. Our results demonstrated that two features of word processing efficiency, phonology and semantics, can be supported in different brain regions and, importantly, the way serving it in each region was different according to the feature of word processing. Our findings suggest that word processing efficiency can be achieved by in collaboration of multiple brain regions involved in language and general cognitive function structurally and functionally.

Country
United Kingdom
Related Organizations
Subjects by Vocabulary

Microsoft Academic Graph classification: Computer science Speech recognition Middle temporal gyrus Word processing Brain mapping medicine.diagnostic_test Phonology Conceptual semantics medicine.anatomical_structure Connectome Posterior parietal cortex Anterior temporal lobe medicine Dorsolateral prefrontal cortex Functional magnetic resonance imaging

Library of Congress Subject Headings: lcsh:Medicine lcsh:Science lcsh:R lcsh:Q

Keywords

Central Nervous System, Male, Social Sciences, Efficiency, Nervous System, Diagnostic Radiology, Thalamus, Functional Magnetic Resonance Imaging, Parietal Lobe, Medicine and Health Sciences, Psychology, Language, Brain Mapping, Multidisciplinary, Radiology and Imaging, Brain, Magnetic Resonance Imaging, Temporal Lobe, Semantics, Female, Anatomy, Word Processing, Research Article, Adult, Computer and Information Sciences, Neural Networks, Imaging Techniques, Neuroimaging, Phonology, Research and Analysis Methods, Young Adult, Diagnostic Medicine, Connectome, Humans, Cognitive Psychology, Biology and Life Sciences, Linguistics, Cognitive Science, Conceptual Semantics, Neuroscience

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    2
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
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gold
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Neuroinformatics
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