Abstract #1337
TASK-INDUCED DEACTIVATION DOES NOT DISRUPT FUNCTIONAL COUPLING OF THE DEFAULT MODE NETWORK DURING THE MOVEMENT
Oleksii Omelchenko 1 and Zinayida Rozhkova 2
1
Human and Animal Physiology, Taras
Shevchenko National University of Kyiv, Kyiv, Kyiv,
Ukraine,
2
Radiology,
Medical Clinic BORIS, Kyiv, Ukraine
Some regions of DMN remain active during the task
execution. We propose TID and functional connectivity
analysis under the execution of motor tasks with various
complexities for DMN heterogeneity study. Motor task
fMRI was done for DMN deactivation and connectivity
analysis. Despite the unified pattern of brain
activation across different motor tasks, deactivation
pattern differ depending on the complexity of the
movements and their cognitive demand. Nodes of DMN may
function simultaneously in the TID and task independent
regimes during the movements. Obligatory PCC involvement
in TID and task independent patterns of DMN functioning
supports its possible hub function.
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