Functional connectivity (FC) of resting-state fMRI (rs-fMRI) is a popular method for characterizing brain connectivity. rs-fMRI indirectly measures neuronal fluctuations through blood-oxygenation-level dependent (BOLD) signal and is susceptible to various physiological noise which lead to spurious correlations. We investigated the relationship between rs-fMRI FC and band-limited power (BLP) coupling measured using intracranial EEG (icEEG). Both static and dynamic connectivity analyses revealed a relationship between BOLD FC and icEEG BLP coupling across multiple frequency bands. However, this relationship depends on distance and electrode type. BOLD FC is distinct in fluctuations and spatial variability, suggesting non-neural signal sources in rs-fMRI connectivity.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords