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Functional reconfiguration of task-active frontoparietal control network facilitates abstract reasoning
Thomas M Morin1,2, Kylie N Moore1,2, Kylie Isenburg1,2
1Graduate Program for Neuroscience, Boston University, 677 Beacon St., Boston, MA 02215, United States.
Cerebral Cortex (New York, N.Y. : 1991)
|November 24, 2022
Summary
Brain networks adapt for abstract reasoning. Frontoparietal networks reconfigure functional connectivity from rest to task, creating a "task-ready" state for efficient cognitive control and attention.
Area of Science:
- Cognitive Neuroscience
- Neuroimaging
Background:
- Brain functional network architecture is largely conserved between resting and task states.
- Changes in functional connectivity are crucial for complex cognition.
Purpose of the Study:
- To examine symbolic and perceptual reasoning using a modified Raven's Progressive Matrices Task.
- To investigate brain network activation and functional reconfiguration during abstract reasoning.
- To compare network dynamics between resting state and task states.
Main Methods:
- Functional magnetic resonance imaging (fMRI) in human participants.
- Analysis of activation patterns and functional connectivity.
- Utilized a modified Raven's Progressive Matrices Task focusing on both symbolic and perceptual reasoning.
Main Results:
- Frontoparietal networks, including cognitive control and dorsal attention networks, showed significant activation during abstract reasoning.
- Task-active regions demonstrated flexible functional connectivity reconfiguration from resting state to task.
- A stable core network in default and somatomotor regions was maintained across resting and task states.
Conclusions:
- Regionally-specific changes in frontoparietal network functional connectivity prepare the brain for efficient task activation.
- This flexible reconfiguration supports abstract reasoning by facilitating task-ready states.
- Findings highlight the dynamic nature of brain networks during cognitive tasks.
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