Alpha rhythm in EEG is prominent in the occipital and parietal cortex under an awake brain state. Previous studies have reported strong correlations between the resting-state fMRI signals and EEG alpha power. Here, we re-examined their correlations at different time delays. We found strong positive fMRI correlations at the zero lag, which is distinct from those observed at the typical hemodynamic delay. The finding suggests that the resting-state EEG alpha modulation is likely associated with a sequential brain process starting much earlier.
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