Different interaction modes for the default mode network revealed by resting state functional magnetic resonance imaging

Zuo, Nianming, Song, Ming, Fan, Lingzhong, Eickhoff, Simon B. and Jiang, Tianzi (2016) Different interaction modes for the default mode network revealed by resting state functional magnetic resonance imaging. European Journal of Neuroscience, 43 1: 78-88. doi:10.1111/ejn.13112

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Author Zuo, Nianming
Song, Ming
Fan, Lingzhong
Eickhoff, Simon B.
Jiang, Tianzi
Title Different interaction modes for the default mode network revealed by resting state functional magnetic resonance imaging
Journal name European Journal of Neuroscience   Check publisher's open access policy
ISSN 1460-9568
0953-816X
Publication date 2016-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.1111/ejn.13112
Open Access Status File (Author Post-print)
Volume 43
Issue 1
Start page 78
End page 88
Total pages 11
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2016
Language eng
Abstract The default mode network (DMN), which, in the resting state, is in charge of both the brain's intrinsic mentation and its reflexive responses to external stimuli, is recognized as an essential network in the human brain. These two roles of mentation and reflexive response recruit the DMN nodes and other task networks differently. Existing research has revealed that the interactions inside the DMN (between nodes within the DMN) and outside the DMN (between nodes in the DMN and nodes in task networks) have different modes, in terms of both strength and timing. These findings raise interesting questions. For example, are the internal and external interactions of the DMN equally linear or nonlinear? This study examined these interaction patterns using datasets from the Human Connectome Project. A maximal information-based nonparametric exploration statistics strategy was utilized to characterize the full correlations, and the Pearson correlation was used to capture the linear component of the full correlations. We then contrasted the level of linearity/nonlinearity with respect to the internal and external interactions of the DMN. After a brain-wide exploration, we found that the interactions between the DMN and the sensorimotor-related networks (including the sensorimotor, sensory association, and integration areas) showed more nonlinearity, whereas those between the intra-DMN nodes were similarly less nonlinear. These findings may provide a clue for understanding the underlying neuronal principles of the internal and external roles of the DMN.
Keyword Default mode network
Functional magnetic resonance imaging
Human
Linear
Nonlinear
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2016 Collection
 
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