Network-Based Asymmetry of the Human Auditory System.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_845BA7B7D20A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Network-Based Asymmetry of the Human Auditory System.
Journal
Cerebral cortex
Author(s)
Mišic B., Betzel R.F., Griffa A., de Reus M.A., He Y., Zuo X.N., van den Heuvel M.P., Hagmann P., Sporns O., Zatorre R.J.
ISSN
1460-2199 (Electronic)
ISSN-L
1047-3211
Publication state
Published
Issued date
01/07/2018
Peer-reviewed
Oui
Volume
28
Number
7
Pages
2655-2664
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Converging evidence from activation, connectivity, and stimulation studies suggests that auditory brain networks are lateralized. Here we show that these findings can be at least partly explained by the asymmetric network embedding of the primary auditory cortices. Using diffusion-weighted imaging in 3 independent datasets, we investigate the propensity for left and right auditory cortex to communicate with other brain areas by quantifying the centrality of the auditory network across a spectrum of communication mechanisms, from shortest path communication to diffusive spreading. Across all datasets, we find that the right auditory cortex is better integrated in the connectome, facilitating more efficient communication with other areas, with much of the asymmetry driven by differences in communication pathways to the opposite hemisphere. Critically, the primacy of the right auditory cortex emerges only when communication is conceptualized as a diffusive process, taking advantage of more than just the topologically shortest paths in the network. Altogether, these results highlight how the network configuration and embedding of a particular region may contribute to its functional lateralization.
Keywords
Acoustic Stimulation, Adult, Aged, Auditory Cortex/diagnostic imaging, Auditory Cortex/physiology, Auditory Pathways/diagnostic imaging, Auditory Pathways/physiology, Cohort Studies, Communication, Connectome, Diffusion Magnetic Resonance Imaging, Female, Functional Laterality, Humans, Image Processing, Computer-Assisted, Male, Middle Aged, Young Adult
Pubmed
Web of science
Open Access
Yes
Create date
12/05/2018 11:07
Last modification date
09/10/2019 6:09
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