Keywords: fMRI Acquisition, fMRI (task based), Looping star, passive listening task, neurolinguistics
Motivation: Standard echo-planar fMRI sequences are very loud (> 100 dB) and may lead to adverse health effects. Looping star (LS) fMRI might be a potential alternative at lower sound levels, especially in studies sensitive to noise levels such as those using auditory stimuli.
Goal(s): To investigate the relative BOLD signal of LS in comparison to standard EPI using a passive listening task.
Approach: Passive presentation of auditory stimuli during LS and EPI fMRI scans and comparison of the recorded BOLD signal.
Results: LS and EPI show similar sensitivity to BOLD signal elicited by passively listening to auditory stimuli.
Impact: : LS may be a valid alternative for future research utilizing auditory stimuli without the added confound of background noise and the risk of adverse health effects. The sequence might also be specifically suitable to research sound averse populations.
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