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dc.contributor.authorYue, Qiuhai
Martin, Randi
Fischer-Baum, Simon
Ramos-Nuñez, Aurora I.
Ye, Fengdan
Deem, Michael W.
dc.date.accessioned 2017-08-11T20:05:52Z
dc.date.available 2017-08-11T20:05:52Z
dc.date.issued 2017
dc.identifier.citation Yue, Qiuhai, Martin, Randi, Fischer-Baum, Simon, et al.. "Brain Modularity Mediates the Relation between Task Complexity and Performance." Journal of Cognitive Neuroscience, 29, no. 9 (2017) The MIT Press: 1532-1546. https://doi.org/10.1162/jocn_a_01142.
dc.identifier.urihttps://hdl.handle.net/1911/96645
dc.description.abstract Recent work in cognitive neuroscience has focused on analyzing the brain as a network, rather than as a collection of independent regions. Prior studies taking this approach have found that individual differences in the degree of modularity of the brain network relate to performance on cognitive tasks. However, inconsistent results concerning the direction of this relationship have been obtained, with some tasks showing better performance as modularity increases and other tasks showing worse performance. A recent theoretical model [Chen, M., & Deem, M. W. 2015. Development of modularity in the neural activity of children's brains. Physical Biology, 12, 016009] suggests that these inconsistencies may be explained on the grounds that high-modularity networks favor performance on simple tasks whereas low-modularity networks favor performance on more complex tasks. The current study tests these predictions by relating modularity from resting-state fMRI to performance on a set of simple and complex behavioral tasks. Complex and simple tasks were defined on the basis of whether they did or did not draw on executive attention. Consistent with predictions, we found a negative correlation between individuals' modularity and their performance on a composite measure combining scores from the complex tasks but a positive correlation with performance on a composite measure combining scores from the simple tasks. These results and theory presented here provide a framework for linking measures of whole-brain organization from network neuroscience to cognitive processing.
dc.language.iso eng
dc.publisher The MIT Press
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Massachusetts Institute of Technology.
dc.title Brain Modularity Mediates the Relation between Task Complexity and Performance
dc.type Journal article
dc.citation.journalTitle Journal of Cognitive Neuroscience
dc.contributor.org Center for Theoretical Biological Physics
dc.subject.keywordmodularity
resting-state fMRI
task complexity
individual difference
network neuroscience
dc.citation.volumeNumber 29
dc.citation.issueNumber 9
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1162/jocn_a_01142
dc.identifier.pmid 28471728
dc.type.publication post-print
dc.citation.firstpage 1532
dc.citation.lastpage 1546


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