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- W2277151310 endingPage "279" @default.
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- W2277151310 abstract "Abstract Objectives: Individuals with chronic traumatic brain injury (TBI) often show detrimental deficits in higher order cognitive functions requiring coordination of multiple brain networks. Although assessing TBI-related deficits in higher order cognition in the context of network dysfunction is promising, few studies have systematically investigated altered interactions among multiple networks in chronic TBI. Method: We characterized disrupted resting-state functional connectivity of the default mode network (DMN), dorsal attention network (DAN), and frontoparietal control network (FPCN) whose interactions are required for internally and externally focused goal-directed cognition in chronic TBI. Specifically, we compared the network interactions of 40 chronic TBI individuals (8 years post-injury on average) with those of 17 healthy individuals matched for gender, age, and years of education. Results: The network-based statistic (NBS) on DMN-DAN-FPCN connectivity of these groups revealed statistically significant ( p NBS <.05; | Z| >2.58) reductions in within-DMN, within-FPCN, DMN-DAN, and DMN-FPCN connectivity of the TBI group over healthy controls. Importantly, such disruptions occurred prominently in between-network connectivity. Subsequent analyses further exhibited the disrupted connectivity patterns of the chronic TBI group occurring preferentially in long-range and inter-hemispheric connectivity of DMN-DAN-FPCN. Most importantly, graph-theoretic analysis demonstrated relative reductions in global, local and cost efficiency ( p <.05) as a consequence of the network disruption patterns in the TBI group. Conclusion: Our findings suggest that assessing multiple networks-of-interest simultaneously will allow us to better understand deficits in goal-directed cognition and other higher order cognitive phenomena in chronic TBI. Future research will be needed to better understand the behavioral consequences related to these network disruptions. ( JINS , 2016, 22 , 263–279)" @default.
- W2277151310 created "2016-06-24" @default.
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- W2277151310 creator A5044324548 @default.
- W2277151310 creator A5090240875 @default.
- W2277151310 date "2016-02-01" @default.
- W2277151310 modified "2023-10-14" @default.
- W2277151310 title "Disrupted Intrinsic Connectivity among Default, Dorsal Attention, and Frontoparietal Control Networks in Individuals with Chronic Traumatic Brain Injury" @default.
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- W2277151310 doi "https://doi.org/10.1017/s1355617715001393" @default.
- W2277151310 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4763346" @default.
- W2277151310 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26888622" @default.