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An Investigation of the Differences and Similarities between Generated Small-World Networks for Right-and Left-Hand Motor Imageries
Zhang J.1; Li Y.4; Chen H.2; Ding J.3; Yuan Z.5
2016-11-04
Source PublicationScientific Reports
ISSN20452322
Volume6
Abstract

In this study, small-world network analysis was performed to identify the similarities and differences between functional brain networks for right-and left-hand motor imageries (MIs). First, Pearson correlation coefficients among the nodes within the functional brain networks from healthy subjects were calculated. Then, small-world network indicators, including the clustering coefficient, the average path length, the global efficiency, the local efficiency, the average node degree, and the small-world index, were generated for the functional brain networks during both right-and left-hand MIs. We identified large differences in the small-world network indicators between the functional networks during MI and in the random networks. More importantly, the functional brain networks underlying the right-and left-hand MIs exhibited similar small-world properties in terms of the clustering coefficient, the average path length, the global efficiency, and the local efficiency. By contrast, the right-and left-hand MI brain networks showed differences in small-world characteristics, including indicators such as the average node degree and the small-world index. Interestingly, our findings also suggested that the differences in the activity intensity and range, the average node degree, and the small-world index of brain networks between the right-and left-hand MIs were associated with the asymmetry of brain functions.

DOI10.1038/srep36562
URLView the original
Indexed BySCI
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000387004200001
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
Affiliation1.Sichuan University
2.University of Electronic Science and Technology of China
3.Sichuan University of Science & Engineering
4.Southwest Jiaotong University
5.Universidade de Macau
Recommended Citation
GB/T 7714
Zhang J.,Li Y.,Chen H.,et al. An Investigation of the Differences and Similarities between Generated Small-World Networks for Right-and Left-Hand Motor Imageries[J]. Scientific Reports,2016,6.
APA Zhang J.,Li Y.,Chen H.,Ding J.,&Yuan Z..(2016).An Investigation of the Differences and Similarities between Generated Small-World Networks for Right-and Left-Hand Motor Imageries.Scientific Reports,6.
MLA Zhang J.,et al."An Investigation of the Differences and Similarities between Generated Small-World Networks for Right-and Left-Hand Motor Imageries".Scientific Reports 6(2016).
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