Large-scale brain network interactions supporting externally and internally directed cognition

Subjects: Psychology >> Cognitive Psychology submitted time 2017-12-29

辛斐 谢超 雷旭

Abstract： Numerous evidence has indicated that the high-level cognitive functions are not carried out by isolated operation of single brain area, but through the dynamic interactions between multiple large-scale brain networks. Among them, frontoparietal control network plays a pivotal gate-keeping role in goal-directed cognition, modulating the dynamic balance between the dorsal attention network and default network. Dorsal attention network is mainly responsible for the external top-down attention-oriented and visual space perception. The default network is considered to support internally oriented and self-referential mental processes. By selectively cooperating with the default network or dorsal attention network according to the attentional demands of the task, the frontoparietal control network may serve as a cortical mediator linking the two networks to support adaptive cognitive processes. Regarding these three large-scale brain networks, there are still some debates in the nodes (regions), the functional characterization and interactive relationship. Future research needs to further explore the functional roles of the subsystems within each network, and use the effective connectivity method to examine the direction and dynamics of the information transmission within and between networks.

Peer Review Status:Awaiting Review

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