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Time‐varying nodal measures with temporal community structure: A cautionary note to avoid misinterpretation.

Authors :
Thompson, William Hedley
Kastrati, Granit
Finc, Karolina
Wright, Jessey
Shine, James M.
Poldrack, Russell A.
Source :
Human Brain Mapping. Jun2020, Vol. 41 Issue 9, p2347-2356. 10p.
Publication Year :
2020

Abstract

In network neuroscience, temporal network models have gained popularity. In these models, network properties have been related to cognition and behavior. Here, we demonstrate that calculating nodal properties that are dependent on temporal community structure (such as the participation coefficient [PC]) in time‐varying contexts can potentially lead to misleading results. Specifically, with regards to the participation coefficient, increases in integration can be inferred when the opposite is occurring. Further, we present a temporal extension to the PC measure (temporal PC) that circumnavigates this problem by jointly considering all community partitions assigned to a node through time. The proposed method allows us to track a node's integration through time while adjusting for the possible changes in the community structure of the overall network. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10659471
Volume :
41
Issue :
9
Database :
Academic Search Index
Journal :
Human Brain Mapping
Publication Type :
Academic Journal
Accession number :
143356596
Full Text :
https://doi.org/10.1002/hbm.24950