Researchers from the Chinese Academy of Sciences have identified a new organizational principle within the default mode network (DMN) that explains how it supports both internal thoughts and external perceptions. The study reveals that the DMN is composed of distinct subregions acting as either senders or receivers of information, allowing the brain to flexibly shift between memory-driven thought and sensory perception.
Key findings include:
* Identification of receiver-like subregions that support information integration during perception through stronger connectivity with heteromodal association networks.
* Identification of sender-like subregions that guide memory-based behavior via coupling with sensorimotor systems.
* Evidence that these subdivisions correspond to specific cognitive modes, such as face recognition versus memory-guided decisions.
Key findings include:
* Identification of receiver-like subregions that support information integration during perception through stronger connectivity with heteromodal association networks.
* Identification of sender-like subregions that guide memory-based behavior via coupling with sensorimotor systems.
* Evidence that these subdivisions correspond to specific cognitive modes, such as face recognition versus memory-guided decisions.
