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000902338 1001_ $$0P:(DE-Juel1)174570$$aSbaihat, Hasan Mohammad Hasan$$b0$$ufzj
000902338 245__ $$aDynamics of task-induced modulation of spontaneous brain activity and functional connectivity in the triple resting-state networks assessed using the visual oddball paradigm
000902338 260__ $$aSan Francisco, California, US$$bPLOS$$c2021
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000902338 520__ $$aThe default mode network (DMN), the salience network (SN), and the central executive network (CEN) are considered as the core resting-state brain networks (RSN) due to their involvement in a wide range of cognitive tasks. Despite the large body of knowledge related to their regional spontaneous activity (RSA) and functional connectivity (FC) of these networks, less is known about the dynamics of the task-associated modulation on these parameters and the task-induced interaction between these three networks. We have investigated the effects of the visual-oddball paradigm on three fMRI measures (amplitude of low-frequency fluctuations for RSA, regional homogeneity for local FC, and degree centrality for global FC) in these three core RSN. A rest-task-rest paradigm was used and the RSNs were identified using independent component analysis (ICA) on the resting-state data. The observed patterns of change differed noticeably between the networks and were tightly associated with the task-related brain activity and the distinct involvement of the networks in the performance of the single subtasks. Furthermore, the inter-network analysis showed an increased synchronization of CEN with the DMN and the SN immediately after the task, but not between the DMN and SN. Higher pre-task inter-network synchronization between the DMN and the CEN was associated with shorter reaction times and thus better performance. Our results provide some additional insights into the dynamics within and between the triple RSN. Further investigations are required in order to understand better their functional importance and interplay.
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000902338 7001_ $$0P:(DE-Juel1)164396$$aRajkumar, Ravichandran$$b1
000902338 7001_ $$0P:(DE-Juel1)169201$$aRamkiran, Shukti$$b2$$ufzj
000902338 7001_ $$0P:(DE-HGF)0$$aAssi, Abed Al-Nasser$$b3
000902338 7001_ $$0P:(DE-Juel1)131794$$aShah, N. Jon$$b4$$ufzj
000902338 7001_ $$0P:(DE-HGF)0$$aVeselinović, Tanja$$b5
000902338 7001_ $$0P:(DE-Juel1)131781$$aNeuner, Irene$$b6$$eCorresponding author$$ufzj
000902338 773__ $$0PERI:(DE-600)2267670-3$$a10.1371/journal.pone.0246709$$gVol. 16, no. 11, p. e0246709 -$$n11$$pe0246709 -$$tPLOS ONE$$v16$$x1932-6203$$y2021
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