Connectivity gradients in spontaneous brain activity at multiple frequency bands.

ABSTRACT: The intrinsic organizational structure of the brain is reflected in spontaneous brain oscillations. Its functional integration and segregation hierarchy have been discovered in space by leveraging gradient approaches to low-frequency functional connectivity. This hierarchy of brain oscillations has not yet been fully understood, since previous studies have mainly concentrated on the brain oscillations from a single limited frequency range (~ 0.01-0.1 Hz). In this work, we extended the frequency range and performed gradient analysis across multiple frequency bands of fast resting-state fMRI signals from the Human Connectome Project and condensed a frequency-rank cortical map of the highest gradient. We found that the coarse skeletons of the functional organization hierarchy are generalizabl

SUBMITTER: Gong ZQ 

PROVIDER: S-EPMC10656950 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature